Given the following C code and unoptimized assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include <stdio.h>
#include <string.h>


void allNull(char str[], int n);


int main(void) {
	int N;
	char buff[1000], buff2[1000];
	char answer[1000];
	int i, j, k;
	int a, b, s, up;
	
	scanf("%d", &N);
	while (N--) {
		up = 0;
		allNull(buff, sizeof(buff));
		allNull(buff2, sizeof(buff2));
		allNull(answer, sizeof(answer));
		
		scanf("%s", buff);
		scanf("%s", buff2);
		
		if( (i = strlen(buff)) > 80 || (j = strlen(buff2)) > 80) {
			printf("overflow\n");
			continue;
		}
		
		if( i < j)	k = j;
		else		k = i;
		answer[k + 1] = '\0';
		for(; k >= 0; k--) {
			if( i > 0)
				a = buff[i-- - 1] - '0';
			else
				a = 0;
			if( j > 0)
				b = buff2[j-- -1 ] - '0';
			else
				b = 0;
			s = (a + b + up) % 10;
			answer[k] = s + '0';
			up = (a + b + up) / 10;
		}
		if( answer[0] == '1') {
			if( strlen(answer) > 80) {
				printf("overflow\n");
				continue;
			}
		}
		else {
			for (i = 0; i <= strlen(answer); i++)
				answer[i] = answer[i+1];
			}
			
		printf("%s\n", answer);
	}
	
	return 0;
}


void allNull(char str[], int n) {
	int i;
	for(i = 0; i < n && str[i] != '\0'; n++)
		str[i] = '\0';
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d"
.LC1:
	.string	"%s"
.LC2:
	.string	"overflow"
	.text
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	pushq	%rbx
	subq	$3064, %rsp
	.cfi_offset 3, -24
	movq	%fs:40, %rax
	movq	%rax, -24(%rbp)
	xorl	%eax, %eax
	leaq	-3072(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	jmp	.L2
.L17:
	movl	$0, -3048(%rbp)
	leaq	-3040(%rbp), %rax
	movl	$1000, %esi
	movq	%rax, %rdi
	call	allNull
	leaq	-2032(%rbp), %rax
	movl	$1000, %esi
	movq	%rax, %rdi
	call	allNull
	leaq	-1024(%rbp), %rax
	movl	$1000, %esi
	movq	%rax, %rdi
	call	allNull
	leaq	-3040(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-2032(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-3040(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -3068(%rbp)
	cmpl	$80, -3068(%rbp)
	jg	.L3
	leaq	-2032(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -3064(%rbp)
	cmpl	$80, -3064(%rbp)
	jle	.L4
.L3:
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L2
.L4:
	movl	-3068(%rbp), %eax
	cmpl	-3064(%rbp), %eax
	jge	.L5
	movl	-3064(%rbp), %eax
	movl	%eax, -3060(%rbp)
	jmp	.L6
.L5:
	movl	-3068(%rbp), %eax
	movl	%eax, -3060(%rbp)
.L6:
	movl	-3060(%rbp), %eax
	addl	$1, %eax
	cltq
	movb	$0, -1024(%rbp,%rax)
	jmp	.L7
.L12:
	cmpl	$0, -3068(%rbp)
	jle	.L8
	movl	-3068(%rbp), %eax
	leal	-1(%rax), %edx
	movl	%edx, -3068(%rbp)
	subl	$1, %eax
	cltq
	movzbl	-3040(%rbp,%rax), %eax
	movsbl	%al, %eax
	subl	$48, %eax
	movl	%eax, -3056(%rbp)
	jmp	.L9
.L8:
	movl	$0, -3056(%rbp)
.L9:
	cmpl	$0, -3064(%rbp)
	jle	.L10
	movl	-3064(%rbp), %eax
	leal	-1(%rax), %edx
	movl	%edx, -3064(%rbp)
	subl	$1, %eax
	cltq
	movzbl	-2032(%rbp,%rax), %eax
	movsbl	%al, %eax
	subl	$48, %eax
	movl	%eax, -3052(%rbp)
	jmp	.L11
.L10:
	movl	$0, -3052(%rbp)
.L11:
	movl	-3056(%rbp), %edx
	movl	-3052(%rbp), %eax
	addl	%eax, %edx
	movl	-3048(%rbp), %eax
	addl	%eax, %edx
	movslq	%edx, %rax
	imulq	$1717986919, %rax, %rax
	shrq	$32, %rax
	sarl	$2, %eax
	movl	%edx, %ecx
	sarl	$31, %ecx
	subl	%ecx, %eax
	movl	%eax, -3044(%rbp)
	movl	-3044(%rbp), %ecx
	movl	%ecx, %eax
	sall	$2, %eax
	addl	%ecx, %eax
	addl	%eax, %eax
	subl	%eax, %edx
	movl	%edx, -3044(%rbp)
	movl	-3044(%rbp), %eax
	addl	$48, %eax
	movl	%eax, %edx
	movl	-3060(%rbp), %eax
	cltq
	movb	%dl, -1024(%rbp,%rax)
	movl	-3056(%rbp), %edx
	movl	-3052(%rbp), %eax
	addl	%eax, %edx
	movl	-3048(%rbp), %eax
	addl	%edx, %eax
	movslq	%eax, %rdx
	imulq	$1717986919, %rdx, %rdx
	shrq	$32, %rdx
	sarl	$2, %edx
	sarl	$31, %eax
	movl	%eax, %ecx
	movl	%edx, %eax
	subl	%ecx, %eax
	movl	%eax, -3048(%rbp)
	subl	$1, -3060(%rbp)
.L7:
	cmpl	$0, -3060(%rbp)
	jns	.L12
	movzbl	-1024(%rbp), %eax
	cmpb	$49, %al
	jne	.L13
	leaq	-1024(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	cmpq	$80, %rax
	jbe	.L14
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L2
.L13:
	movl	$0, -3068(%rbp)
	jmp	.L15
.L16:
	movl	-3068(%rbp), %eax
	addl	$1, %eax
	cltq
	movzbl	-1024(%rbp,%rax), %edx
	movl	-3068(%rbp), %eax
	cltq
	movb	%dl, -1024(%rbp,%rax)
	addl	$1, -3068(%rbp)
.L15:
	movl	-3068(%rbp), %eax
	movslq	%eax, %rbx
	leaq	-1024(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	cmpq	%rax, %rbx
	jbe	.L16
.L14:
	leaq	-1024(%rbp), %rax
	movq	%rax, %rdi
	call	puts@PLT
.L2:
	movl	-3072(%rbp), %eax
	leal	-1(%rax), %edx
	movl	%edx, -3072(%rbp)
	testl	%eax, %eax
	jne	.L17
	movl	$0, %eax
	movq	-24(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L19
	call	__stack_chk_fail@PLT
.L19:
	movq	-8(%rbp), %rbx
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.globl	allNull
	.type	allNull, @function
allNull:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movq	%rdi, -24(%rbp)
	movl	%esi, -28(%rbp)
	movl	$0, -4(%rbp)
	jmp	.L21
.L23:
	movl	-4(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movb	$0, (%rax)
	addl	$1, -28(%rbp)
.L21:
	movl	-4(%rbp), %eax
	cmpl	-28(%rbp), %eax
	jge	.L24
	movl	-4(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movzbl	(%rax), %eax
	testb	%al, %al
	jne	.L23
.L24:
	nop
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE1:
	.size	allNull, .-allNull
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```

Only output the optimized assembly code. Do not include any other text. Do not write any comments in the assembly code. Wrap the assembly code in ```assembly``` tags.
user
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d"
.LC1:
	.string	"%s"
.LC2:
	.string	"overflow"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB35:
	.cfi_startproc
	endbr64
	pushq	%r15
	.cfi_def_cfa_offset 16
	.cfi_offset 15, -16
	leaq	.LC0(%rip), %rdi
	pushq	%r14
	.cfi_def_cfa_offset 24
	.cfi_offset 14, -24
	pushq	%r13
	.cfi_def_cfa_offset 32
	.cfi_offset 13, -32
	pushq	%r12
	.cfi_def_cfa_offset 40
	.cfi_offset 12, -40
	pushq	%rbp
	.cfi_def_cfa_offset 48
	.cfi_offset 6, -48
	pushq	%rbx
	.cfi_def_cfa_offset 56
	.cfi_offset 3, -56
	subq	$3048, %rsp
	.cfi_def_cfa_offset 3104
	movq	%fs:40, %rax
	movq	%rax, 3032(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %eax
	leal	-1(%rax), %edx
	movl	%edx, 12(%rsp)
	testl	%eax, %eax
	je	.L3
	leaq	16(%rsp), %r12
	leaq	.LC1(%rip), %rbp
	leaq	1024(%rsp), %r13
	leaq	.LC2(%rip), %r14
	leaq	2032(%rsp), %rbx
	jmp	.L2
	.p2align 4,,10
	.p2align 3
.L6:
	movq	%r14, %rdi
	call	puts@PLT
	movl	12(%rsp), %eax
	leal	-1(%rax), %edx
	movl	%edx, 12(%rsp)
	testl	%eax, %eax
	je	.L3
.L2:
	cmpb	$0, 16(%rsp)
	je	.L18
	movb	$0, 16(%rsp)
.L18:
	cmpb	$0, 1024(%rsp)
	je	.L4
	movb	$0, 1024(%rsp)
.L4:
	cmpb	$0, 2032(%rsp)
	je	.L5
	movb	$0, 2032(%rsp)
.L5:
	movq	%r12, %rsi
	movq	%rbp, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movq	%r13, %rsi
	movq	%rbp, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movq	%r12, %rdi
	call	strlen@PLT
	movq	%rax, %r15
	cmpq	$80, %rax
	ja	.L6
	movq	%r13, %rdi
	call	strlen@PLT
	cmpq	$80, %rax
	ja	.L6
	cmpl	%eax, %r15d
	movl	%r15d, %edi
	leaq	2031(%rsp), %r8
	movl	%eax, %esi
	cmovl	%eax, %r15d
	leal	1(%r15), %eax
	movslq	%r15d, %r15
	cltq
	leaq	(%rbx,%r15), %rcx
	movb	$0, 2032(%rsp,%rax)
	xorl	%eax, %eax
	.p2align 4,,10
	.p2align 3
.L13:
	xorl	%edx, %edx
	testl	%edi, %edi
	je	.L9
	subl	$1, %edi
	movslq	%edi, %rdx
	movsbl	16(%rsp,%rdx), %edx
	subl	$48, %edx
.L9:
	testl	%esi, %esi
	je	.L10
	subl	$1, %esi
	movslq	%esi, %r9
	movsbl	1024(%rsp,%r9), %r9d
	leal	-48(%rdx,%r9), %edx
.L10:
	addl	%eax, %edx
	subq	$1, %rcx
	movslq	%edx, %rax
	movl	%edx, %r9d
	imulq	$1717986919, %rax, %rax
	sarl	$31, %r9d
	sarq	$34, %rax
	subl	%r9d, %eax
	leal	(%rax,%rax,4), %r9d
	addl	%r9d, %r9d
	subl	%r9d, %edx
	addl	$48, %edx
	movb	%dl, 1(%rcx)
	cmpq	%rcx, %r8
	jne	.L13
	cmpb	$49, 2032(%rsp)
	jne	.L14
	movq	%rbx, %rdi
	call	strlen@PLT
	cmpq	$80, %rax
	ja	.L6
.L16:
	movq	%rbx, %rdi
	call	puts@PLT
	movl	12(%rsp), %eax
	leal	-1(%rax), %edx
	movl	%edx, 12(%rsp)
	testl	%eax, %eax
	jne	.L2
.L3:
	movq	3032(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L31
	addq	$3048, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 56
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 48
	popq	%rbp
	.cfi_def_cfa_offset 40
	popq	%r12
	.cfi_def_cfa_offset 32
	popq	%r13
	.cfi_def_cfa_offset 24
	popq	%r14
	.cfi_def_cfa_offset 16
	popq	%r15
	.cfi_def_cfa_offset 8
	ret
.L14:
	.cfi_restore_state
	leaq	2033(%rsp), %r15
	.p2align 4,,10
	.p2align 3
.L15:
	movzbl	(%r15), %eax
	movq	%rbx, %rdi
	addq	$1, %r15
	movb	%al, -2(%r15)
	call	strlen@PLT
	movq	%rax, %r8
	movq	%r15, %rax
	subq	%rbx, %rax
	subq	$1, %rax
	cmpq	%rax, %r8
	jnb	.L15
	jmp	.L16
.L31:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE35:
	.size	main, .-main
	.text
	.p2align 4
	.globl	allNull
	.type	allNull, @function
allNull:
.LFB36:
	.cfi_startproc
	endbr64
	testl	%esi, %esi
	jle	.L32
	cmpb	$0, (%rdi)
	je	.L32
	movb	$0, (%rdi)
.L32:
	ret
	.cfi_endproc
.LFE36:
	.size	allNull, .-allNull
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:

rule
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d"
.LC1:
	.string	"%s"
.LC2:
	.string	"overflow"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB35:
	.cfi_startproc
	endbr64
	pushq	%r15
	.cfi_def_cfa_offset 16
	.cfi_offset 15, -16
	leaq	.LC0(%rip), %rdi
	pushq	%r14
	.cfi_def_cfa_offset 24
	.cfi_offset 14, -24
	pushq	%r13
	.cfi_def_cfa_offset 32
	.cfi_offset 13, -32
	pushq	%r12
	.cfi_def_cfa_offset 40
	.cfi_offset 12, -40
	pushq	%rbp
	.cfi_def_cfa_offset 48
	.cfi_offset 6, -48
	pushq	%rbx
	.cfi_def_cfa_offset 56
	.cfi_offset 3, -56
	subq	$3048, %rsp
	.cfi_def_cfa_offset 3104
	movq	%fs:40, %rax
	movq	%rax, 3032(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %eax
	leal	-1(%rax), %edx
	movl	%edx, 12(%rsp)
	testl	%eax, %eax
	je	.L3
	leaq	16(%rsp), %r12
	leaq	.LC1(%rip), %rbp
	leaq	1024(%rsp), %r13
	leaq	.LC2(%rip), %r14
	leaq	2032(%rsp), %rbx
	jmp	.L2
	.p2align 4,,10
	.p2align 3
.L6:
	movq	%r14, %rdi
	call	puts@PLT
	movl	12(%rsp), %eax
	leal	-1(%rax), %edx
	movl	%edx, 12(%rsp)
	testl	%eax, %eax
	je	.L3
.L2:
	cmpb	$0, 16(%rsp)
	je	.L18
	movb	$0, 16(%rsp)
.L18:
	cmpb	$0, 1024(%rsp)
	je	.L4
	movb	$0, 1024(%rsp)
.L4:
	cmpb	$0, 2032(%rsp)
	je	.L5
	movb	$0, 2032(%rsp)
.L5:
	movq	%r12, %rsi
	movq	%rbp, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movq	%r13, %rsi
	movq	%rbp, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movq	%r12, %rdi
	call	strlen@PLT
	movq	%rax, %r15
	cmpq	$80, %rax
	ja	.L6
	movq	%r13, %rdi
	call	strlen@PLT
	cmpq	$80, %rax
	ja	.L6
	cmpl	%eax, %r15d
	movl	%r15d, %edi
	leaq	2031(%rsp), %r8
	movl	%eax, %esi
	cmovl	%eax, %r15d
	leal	1(%r15), %eax
	movslq	%r15d, %r15
	cltq
	leaq	(%rbx,%r15), %rcx
	movb	$0, 2032(%rsp,%rax)
	xorl	%eax, %eax
	.p2align 4,,10
	.p2align 3
.L13:
	xorl	%edx, %edx
	testl	%edi, %edi
	je	.L9
	subl	$1, %edi
	movslq	%edi, %rdx
	movsbl	16(%rsp,%rdx), %edx
	subl	$48, %edx
.L9:
	testl	%esi, %esi
	je	.L10
	subl	$1, %esi
	movslq	%esi, %r9
	movsbl	1024(%rsp,%r9), %r9d
	leal	-48(%rdx,%r9), %edx
.L10:
	addl	%eax, %edx
	subq	$1, %rcx
	movslq	%edx, %rax
	movl	%edx, %r9d
	imulq	$1717986919, %rax, %rax
	sarl	$31, %r9d
	sarq	$34, %rax
	subl	%r9d, %eax
	leal	(%rax,%rax,4), %r9d
	addl	%r9d, %r9d
	subl	%r9d, %edx
	addl	$48, %edx
	movb	%dl, 1(%rcx)
	cmpq	%rcx, %r8
	jne	.L13
	cmpb	$49, 2032(%rsp)
	jne	.L14
	movq	%rbx, %rdi
	call	strlen@PLT
	cmpq	$80, %rax
	ja	.L6
.L16:
	movq	%rbx, %rdi
	call	puts@PLT
	movl	12(%rsp), %eax
	leal	-1(%rax), %edx
	movl	%edx, 12(%rsp)
	testl	%eax, %eax
	jne	.L2
.L3:
	movq	3032(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L31
	addq	$3048, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 56
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 48
	popq	%rbp
	.cfi_def_cfa_offset 40
	popq	%r12
	.cfi_def_cfa_offset 32
	popq	%r13
	.cfi_def_cfa_offset 24
	popq	%r14
	.cfi_def_cfa_offset 16
	popq	%r15
	.cfi_def_cfa_offset 8
	ret
.L14:
	.cfi_restore_state
	leaq	2033(%rsp), %r15
	.p2align 4,,10
	.p2align 3
.L15:
	movzbl	(%r15), %eax
	movq	%rbx, %rdi
	addq	$1, %r15
	movb	%al, -2(%r15)
	call	strlen@PLT
	movq	%rax, %r8
	movq	%r15, %rax
	subq	%rbx, %rax
	subq	$1, %rax
	cmpq	%rax, %r8
	jnb	.L15
	jmp	.L16
.L31:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE35:
	.size	main, .-main
	.text
	.p2align 4
	.globl	allNull
	.type	allNull, @function
allNull:
.LFB36:
	.cfi_startproc
	endbr64
	testl	%esi, %esi
	jle	.L32
	cmpb	$0, (%rdi)
	je	.L32
	movb	$0, (%rdi)
.L32:
	ret
	.cfi_endproc
.LFE36:
	.size	allNull, .-allNull
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:

#include <stdio.h>
#include <string.h>


void allNull(char str[], int n);


int main(void) {
	int N;
	char buff[1000], buff2[1000];
	char answer[1000];
	int i, j, k;
	int a, b, s, up;
	
	scanf("%d", &N);
	while (N--) {
		up = 0;
		allNull(buff, sizeof(buff));
		allNull(buff2, sizeof(buff2));
		allNull(answer, sizeof(answer));
		
		scanf("%s", buff);
		scanf("%s", buff2);
		
		if( (i = strlen(buff)) > 80 || (j = strlen(buff2)) > 80) {
			printf("overflow\n");
			continue;
		}
		
		if( i < j)	k = j;
		else		k = i;
		answer[k + 1] = '\0';
		for(; k >= 0; k--) {
			if( i > 0)
				a = buff[i-- - 1] - '0';
			else
				a = 0;
			if( j > 0)
				b = buff2[j-- -1 ] - '0';
			else
				b = 0;
			s = (a + b + up) % 10;
			answer[k] = s + '0';
			up = (a + b + up) / 10;
		}
		if( answer[0] == '1') {
			if( strlen(answer) > 80) {
				printf("overflow\n");
				continue;
			}
		}
		else {
			for (i = 0; i <= strlen(answer); i++)
				answer[i] = answer[i+1];
			}
			
		printf("%s\n", answer);
	}
	
	return 0;
}


void allNull(char str[], int n) {
	int i;
	for(i = 0; i < n && str[i] != '\0'; n++)
		str[i] = '\0';
}
6
1000
800
9999999999999999999999999999999999999999
1
99999999999999999999999999999999999999999999999999999999999999999999999999999999
1
99999999999999999999999999999999999999999999999999999999999999999999999999999999
0
101000000000000000000000000000000000000000000000000000000000000000000000000000000
1
100000000000000000000000000000000000000000000000000000000000000000000000000000000
100000000000000000000000000000000000000000000000000000000000000000000000000000000
 6
1000
476
9999999999999999999999999999999999999999
1
193919268602104111709736623030259273252485145760643079255618727884865768962159432
0
99999999999999999999999999999999999999999999999999999999999999999999999999999999
0
101000000000100000000000000000000000000000000000000000000000000000000000000000000
1
100000000000000000000000000000000000000000000000000000000000000000000000000000000
100000010000000000000000000000001000000000000000000000000000000000000000000000000
 6
1000
476
9999999999999999999999999999999999999999
2
193919268602104111709736623030259273252485145760643079255618727884865768962159432
0
99999999999999999999999999999999999999999999999999999999999999999999999999999999
0
101000000000100000000000000000000000000000000000000000000000000000000000000000000
1
100000000000000000000000000000000000000000000000000000000000000000000000000000000
100000010000000000000000000000001000000000000000000000000000000000000000000000000
 6
1000
755
9999999999999999999999999999999999999999
2
193919268602104111709736623030259273252485145760643079255618727884865768962159432
0
99999999999999999999999999999999999999999999999999999999999999999999999999999999
0
101000000000100000000000000000000000000000000000000000000000000000000000000000000
1
100000000000000000000000000000000000000000000000000000000000000000000000000000000
100000010000000000000000000000001000000000000000000000000000000000000000000000000
 6
1000
755
9999999999999999999999999999999999999999
2
243261624618876455997971136789053167181187171743913425448490990859367943737324271
0
142463102682226334372689374781704996450760988283572064093364924208356239940626688
0
101000000000100000000000000000000000000000000000000000000000000000000000000000000
1
100000000000000000000000000000000000000000000000000000000000000000000000000000000
100000010000000000000000000000001000000000000000000000000000000000000000000000000
 6
1000
755
9999999999999999999999999999999999999999
4
280976690314282340444307633705104594336379746054988521518593581662548433654990577
-2
247877307439217638678829267968661982249540617542069287957874672221870110699738806
1
101000000000100000000000000000000000000000000000000000000000000000000000000000000
2
100000000000000000000000000000000000000000000000000000000000000000000000000000000
100000010000000000000000000000001000000000000000000000000000000000000000000000000
 6
1001
755
9999999999999999999999999999999999999999
4
280976690314282340444307633705104594336379746054988521518593581662548433654990577
-2
411300046036989896054452752967690297696355538580153030342409652025875082181391532
2
101000000000100000000000000000000000000000000000000000000001000000000000000000000
0
100000000000000000000000000000000000000000000000000000000000000000000000000000000
100000010000000000000000000000001000000000000000000000000000000000000000000000000
 6
1001
755
9999999999999999999999999999999999999999
4
280976690314282340444307633705104594336379746054988521518593581662548433654990577
-3
65979473807971894016634449726827689065678029413262970240066900026271391930713716
2
101000000000100000000000000000000000000000000000000000000001000000000000000000000
0
100000000000000000000000000000000000000000000000000000000000000000000000000000000
100000010000000000000000000000001000000000000000000000000000000000000000000000000
 6
1001
755
9999999999999999999999999999999999999999
4
280976690314282340444307633705104594336379746054988521518593581662548433654990577
-3
65979473807971894016634449726827689065678029413262970240066900026271391930713716
3
101000000000100000000000000000000000000000000000000000000001000000000000000000000
0
100000000000000000000000000000000000000000000001000000000000000000000000000000000
100000010000000000000000000000001000000000000000000000000000000000000000000000000
 6
1001
1277
9999999999999999999999999999999999999999
4
280976690314282340444307633705104594336379746054988521518593581662548433654990577
-3
65979473807971894016634449726827689065678029413262970240066900026271391930713716
3
101000000000100000000000000000000000000000000000000000000001000000000000000000000
0
100000000000000000000000000000000000000000000001000000000000000000000000000000000
100000010000000000000000000000001000000000000000000000000000000000000000000000000

1800
10000000000000000000000000000000000000000
overflow
99999999999999999999999999999999999999999999999999999999999999999999999999999999
overflow
overflow
 1476
10000000000000000000000000000000000000000
overflow
99999999999999999999999999999999999999999999999999999999999999999999999999999999
overflow
overflow
 1476
10000000000000000000000000000000000000001
overflow
99999999999999999999999999999999999999999999999999999999999999999999999999999999
overflow
overflow
 1755
10000000000000000000000000000000000000001
overflow
99999999999999999999999999999999999999999999999999999999999999999999999999999999
overflow
overflow
 1755
10000000000000000000000000000000000000001
overflow
overflow
overflow
overflow
 1755
10000000000000000000000000000000000000003
overflow
overflow
overflow
overflow
 1756
10000000000000000000000000000000000000003
overflow
overflow
overflow
overflow
 1756
10000000000000000000000000000000000000003
overflow
65979473807971894016634449726827689065678029413262970240066900026271391930713718
overflow
overflow
 1756
10000000000000000000000000000000000000003
overflow
65979473807971894016634449726827689065678029413262970240066900026271391930713719
overflow
overflow
 2278
10000000000000000000000000000000000000003
overflow
65979473807971894016634449726827689065678029413262970240066900026271391930713719
overflow
overflow

Given the following C code and unoptimized assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include <stdio.h>
#include <string.h>


void allNull(char str[], int n);


int main(void) {
	int N;
	char buff[1000], buff2[1000];
	char answer[1000];
	int i, j, k;
	int a, b, s, up;
	
	scanf("%d", &N);
	while (N--) {
		up = 0;
		allNull(buff, sizeof(buff));
		allNull(buff2, sizeof(buff2));
		allNull(answer, sizeof(answer));
		
		scanf("%s", buff);
		scanf("%s", buff2);
		
		if( (i = strlen(buff)) > 80 || (j = strlen(buff2)) > 80) {
			printf("overflow\n");
			continue;
		}
		
		if( i < j)	k = j;
		else		k = i;
		answer[k + 1] = '\0';
		for(; k >= 0; k--) {
			if( i > 0)
				a = buff[i-- - 1] - '0';
			else
				a = 0;
			if( j > 0)
				b = buff2[j-- -1 ] - '0';
			else
				b = 0;
			s = (a + b + up) % 10;
			answer[k] = s + '0';
			up = (a + b + up) / 10;
		}
		if( answer[0] == '1') {
			if( strlen(answer) > 80) {
				printf("overflow\n");
				continue;
			}
		}
		else {
			for (i = 0; i <= strlen(answer); i++)
				answer[i] = answer[i+1];
			}
			
		printf("%s\n", answer);
	}
	
	return 0;
}


void allNull(char str[], int n) {
	int i;
	for(i = 0; i < n && str[i] != '\0'; n++)
		str[i] = '\0';
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d"
.LC1:
	.string	"%s"
.LC2:
	.string	"overflow"
	.text
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	pushq	%rbx
	subq	$3064, %rsp
	.cfi_offset 3, -24
	movq	%fs:40, %rax
	movq	%rax, -24(%rbp)
	xorl	%eax, %eax
	leaq	-3072(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	jmp	.L2
.L17:
	movl	$0, -3048(%rbp)
	leaq	-3040(%rbp), %rax
	movl	$1000, %esi
	movq	%rax, %rdi
	call	allNull
	leaq	-2032(%rbp), %rax
	movl	$1000, %esi
	movq	%rax, %rdi
	call	allNull
	leaq	-1024(%rbp), %rax
	movl	$1000, %esi
	movq	%rax, %rdi
	call	allNull
	leaq	-3040(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-2032(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-3040(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -3068(%rbp)
	cmpl	$80, -3068(%rbp)
	jg	.L3
	leaq	-2032(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -3064(%rbp)
	cmpl	$80, -3064(%rbp)
	jle	.L4
.L3:
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L2
.L4:
	movl	-3068(%rbp), %eax
	cmpl	-3064(%rbp), %eax
	jge	.L5
	movl	-3064(%rbp), %eax
	movl	%eax, -3060(%rbp)
	jmp	.L6
.L5:
	movl	-3068(%rbp), %eax
	movl	%eax, -3060(%rbp)
.L6:
	movl	-3060(%rbp), %eax
	addl	$1, %eax
	cltq
	movb	$0, -1024(%rbp,%rax)
	jmp	.L7
.L12:
	cmpl	$0, -3068(%rbp)
	jle	.L8
	movl	-3068(%rbp), %eax
	leal	-1(%rax), %edx
	movl	%edx, -3068(%rbp)
	subl	$1, %eax
	cltq
	movzbl	-3040(%rbp,%rax), %eax
	movsbl	%al, %eax
	subl	$48, %eax
	movl	%eax, -3056(%rbp)
	jmp	.L9
.L8:
	movl	$0, -3056(%rbp)
.L9:
	cmpl	$0, -3064(%rbp)
	jle	.L10
	movl	-3064(%rbp), %eax
	leal	-1(%rax), %edx
	movl	%edx, -3064(%rbp)
	subl	$1, %eax
	cltq
	movzbl	-2032(%rbp,%rax), %eax
	movsbl	%al, %eax
	subl	$48, %eax
	movl	%eax, -3052(%rbp)
	jmp	.L11
.L10:
	movl	$0, -3052(%rbp)
.L11:
	movl	-3056(%rbp), %edx
	movl	-3052(%rbp), %eax
	addl	%eax, %edx
	movl	-3048(%rbp), %eax
	addl	%eax, %edx
	movslq	%edx, %rax
	imulq	$1717986919, %rax, %rax
	shrq	$32, %rax
	sarl	$2, %eax
	movl	%edx, %ecx
	sarl	$31, %ecx
	subl	%ecx, %eax
	movl	%eax, -3044(%rbp)
	movl	-3044(%rbp), %ecx
	movl	%ecx, %eax
	sall	$2, %eax
	addl	%ecx, %eax
	addl	%eax, %eax
	subl	%eax, %edx
	movl	%edx, -3044(%rbp)
	movl	-3044(%rbp), %eax
	addl	$48, %eax
	movl	%eax, %edx
	movl	-3060(%rbp), %eax
	cltq
	movb	%dl, -1024(%rbp,%rax)
	movl	-3056(%rbp), %edx
	movl	-3052(%rbp), %eax
	addl	%eax, %edx
	movl	-3048(%rbp), %eax
	addl	%edx, %eax
	movslq	%eax, %rdx
	imulq	$1717986919, %rdx, %rdx
	shrq	$32, %rdx
	sarl	$2, %edx
	sarl	$31, %eax
	movl	%eax, %ecx
	movl	%edx, %eax
	subl	%ecx, %eax
	movl	%eax, -3048(%rbp)
	subl	$1, -3060(%rbp)
.L7:
	cmpl	$0, -3060(%rbp)
	jns	.L12
	movzbl	-1024(%rbp), %eax
	cmpb	$49, %al
	jne	.L13
	leaq	-1024(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	cmpq	$80, %rax
	jbe	.L14
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L2
.L13:
	movl	$0, -3068(%rbp)
	jmp	.L15
.L16:
	movl	-3068(%rbp), %eax
	addl	$1, %eax
	cltq
	movzbl	-1024(%rbp,%rax), %edx
	movl	-3068(%rbp), %eax
	cltq
	movb	%dl, -1024(%rbp,%rax)
	addl	$1, -3068(%rbp)
.L15:
	movl	-3068(%rbp), %eax
	movslq	%eax, %rbx
	leaq	-1024(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	cmpq	%rax, %rbx
	jbe	.L16
.L14:
	leaq	-1024(%rbp), %rax
	movq	%rax, %rdi
	call	puts@PLT
.L2:
	movl	-3072(%rbp), %eax
	leal	-1(%rax), %edx
	movl	%edx, -3072(%rbp)
	testl	%eax, %eax
	jne	.L17
	movl	$0, %eax
	movq	-24(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L19
	call	__stack_chk_fail@PLT
.L19:
	movq	-8(%rbp), %rbx
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.globl	allNull
	.type	allNull, @function
allNull:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movq	%rdi, -24(%rbp)
	movl	%esi, -28(%rbp)
	movl	$0, -4(%rbp)
	jmp	.L21
.L23:
	movl	-4(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movb	$0, (%rax)
	addl	$1, -28(%rbp)
.L21:
	movl	-4(%rbp), %eax
	cmpl	-28(%rbp), %eax
	jge	.L24
	movl	-4(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movzbl	(%rax), %eax
	testb	%al, %al
	jne	.L23
.L24:
	nop
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE1:
	.size	allNull, .-allNull
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
```

Only output the optimized assembly code. Do not include any other text. Do not write any comments in the assembly code. Wrap the assembly code in ```assembly``` tags.
train
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d"
.LC1:
	.string	"%s"
.LC2:
	.string	"overflow"
	.text
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	pushq	%rbx
	subq	$3064, %rsp
	.cfi_offset 3, -24
	movq	%fs:40, %rax
	movq	%rax, -24(%rbp)
	xorl	%eax, %eax
	leaq	-3072(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	jmp	.L2
.L17:
	movl	$0, -3048(%rbp)
	leaq	-3040(%rbp), %rax
	movl	$1000, %esi
	movq	%rax, %rdi
	call	allNull
	leaq	-2032(%rbp), %rax
	movl	$1000, %esi
	movq	%rax, %rdi
	call	allNull
	leaq	-1024(%rbp), %rax
	movl	$1000, %esi
	movq	%rax, %rdi
	call	allNull
	leaq	-3040(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-2032(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-3040(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -3068(%rbp)
	cmpl	$80, -3068(%rbp)
	jg	.L3
	leaq	-2032(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -3064(%rbp)
	cmpl	$80, -3064(%rbp)
	jle	.L4
.L3:
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L2
.L4:
	movl	-3068(%rbp), %eax
	cmpl	-3064(%rbp), %eax
	jge	.L5
	movl	-3064(%rbp), %eax
	movl	%eax, -3060(%rbp)
	jmp	.L6
.L5:
	movl	-3068(%rbp), %eax
	movl	%eax, -3060(%rbp)
.L6:
	movl	-3060(%rbp), %eax
	addl	$1, %eax
	cltq
	movb	$0, -1024(%rbp,%rax)
	jmp	.L7
.L12:
	cmpl	$0, -3068(%rbp)
	jle	.L8
	movl	-3068(%rbp), %eax
	leal	-1(%rax), %edx
	movl	%edx, -3068(%rbp)
	subl	$1, %eax
	cltq
	movzbl	-3040(%rbp,%rax), %eax
	movsbl	%al, %eax
	subl	$48, %eax
	movl	%eax, -3056(%rbp)
	jmp	.L9
.L8:
	movl	$0, -3056(%rbp)
.L9:
	cmpl	$0, -3064(%rbp)
	jle	.L10
	movl	-3064(%rbp), %eax
	leal	-1(%rax), %edx
	movl	%edx, -3064(%rbp)
	subl	$1, %eax
	cltq
	movzbl	-2032(%rbp,%rax), %eax
	movsbl	%al, %eax
	subl	$48, %eax
	movl	%eax, -3052(%rbp)
	jmp	.L11
.L10:
	movl	$0, -3052(%rbp)
.L11:
	movl	-3056(%rbp), %edx
	movl	-3052(%rbp), %eax
	addl	%eax, %edx
	movl	-3048(%rbp), %eax
	addl	%eax, %edx
	movslq	%edx, %rax
	imulq	$1717986919, %rax, %rax
	shrq	$32, %rax
	sarl	$2, %eax
	movl	%edx, %ecx
	sarl	$31, %ecx
	subl	%ecx, %eax
	movl	%eax, -3044(%rbp)
	movl	-3044(%rbp), %ecx
	movl	%ecx, %eax
	sall	$2, %eax
	addl	%ecx, %eax
	addl	%eax, %eax
	subl	%eax, %edx
	movl	%edx, -3044(%rbp)
	movl	-3044(%rbp), %eax
	addl	$48, %eax
	movl	%eax, %edx
	movl	-3060(%rbp), %eax
	cltq
	movb	%dl, -1024(%rbp,%rax)
	movl	-3056(%rbp), %edx
	movl	-3052(%rbp), %eax
	addl	%eax, %edx
	movl	-3048(%rbp), %eax
	addl	%edx, %eax
	movslq	%eax, %rdx
	imulq	$1717986919, %rdx, %rdx
	shrq	$32, %rdx
	sarl	$2, %edx
	sarl	$31, %eax
	movl	%eax, %ecx
	movl	%edx, %eax
	subl	%ecx, %eax
	movl	%eax, -3048(%rbp)
	subl	$1, -3060(%rbp)
.L7:
	cmpl	$0, -3060(%rbp)
	jns	.L12
	movzbl	-1024(%rbp), %eax
	cmpb	$49, %al
	jne	.L13
	leaq	-1024(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	cmpq	$80, %rax
	jbe	.L14
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L2
.L13:
	movl	$0, -3068(%rbp)
	jmp	.L15
.L16:
	movl	-3068(%rbp), %eax
	addl	$1, %eax
	cltq
	movzbl	-1024(%rbp,%rax), %edx
	movl	-3068(%rbp), %eax
	cltq
	movb	%dl, -1024(%rbp,%rax)
	addl	$1, -3068(%rbp)
.L15:
	movl	-3068(%rbp), %eax
	movslq	%eax, %rbx
	leaq	-1024(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	cmpq	%rax, %rbx
	jbe	.L16
.L14:
	leaq	-1024(%rbp), %rax
	movq	%rax, %rdi
	call	puts@PLT
.L2:
	movl	-3072(%rbp), %eax
	leal	-1(%rax), %edx
	movl	%edx, -3072(%rbp)
	testl	%eax, %eax
	jne	.L17
	movl	$0, %eax
	movq	-24(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L19
	call	__stack_chk_fail@PLT
.L19:
	movq	-8(%rbp), %rbx
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.globl	allNull
	.type	allNull, @function
allNull:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movq	%rdi, -24(%rbp)
	movl	%esi, -28(%rbp)
	movl	$0, -4(%rbp)
	jmp	.L21
.L23:
	movl	-4(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movb	$0, (%rax)
	addl	$1, -28(%rbp)
.L21:
	movl	-4(%rbp), %eax
	cmpl	-28(%rbp), %eax
	jge	.L24
	movl	-4(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movzbl	(%rax), %eax
	testb	%al, %al
	jne	.L23
.L24:
	nop
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE1:
	.size	allNull, .-allNull
	.ident	"GCC: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:
