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<stdlib.h>
#include<string.h>
#include<math.h>
#define rep(i,n) for(int i=0;i<n;i++)
int gcd(int a, int b){
    int r=1;
    while(r!=0){
        r=a%b;
        a=b;
        b=r;
    }
    return a;
}
typedef long long ll;
void revStr(char* str){
    int size = strlen(str);
    int i,j;
    char tmp = {0};
    for(i = 0, j = size - 1; i < size / 2; i++, j--){
        tmp = str[i];
        str[i] = str[j];
        str[j] = tmp;
    }return;
}
typedef struct{
    int a,b;
}data;

//昇順
int compare_int(const void *a, const void *b)
{
    return *(int*)a - *(int*)b;
}
//構造体降順
int comp( const void *c1, const void *c2 )
{
  data test1 = *(data *)c1;
  data test2 = *(data *)c2;
  int tmp1 = test1.b;   /* b を基準とする */
  int tmp2 = test2.b;
  return tmp2 - tmp1;
}


int kai(int n){
    if(n==0){
        return 1;
    }
    int sum=1;
    for(int i=1;i<=n;i++){
        sum*=i;
    }
    return sum;
}

int main(){
    char o[100],e[100];
    scanf("%s",o);
    scanf("%s",e);
    for(int i=0;i<strlen(o);i++){
        if(o[i]==0){
            ;
        }else{
            printf("%c",o[i]);
        }
        if(e[i]==0){
            ;
        }else{
            printf("%c",e[i]);
        }
    }
}
```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.globl	gcd
	.type	gcd, @function
gcd:
.LFB6:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movl	%edi, -20(%rbp)
	movl	%esi, -24(%rbp)
	movl	$1, -4(%rbp)
	jmp	.L2
.L3:
	movl	-20(%rbp), %eax
	cltd
	idivl	-24(%rbp)
	movl	%edx, -4(%rbp)
	movl	-24(%rbp), %eax
	movl	%eax, -20(%rbp)
	movl	-4(%rbp), %eax
	movl	%eax, -24(%rbp)
.L2:
	cmpl	$0, -4(%rbp)
	jne	.L3
	movl	-20(%rbp), %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE6:
	.size	gcd, .-gcd
	.globl	revStr
	.type	revStr, @function
revStr:
.LFB7:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$32, %rsp
	movq	%rdi, -24(%rbp)
	movq	-24(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -4(%rbp)
	movb	$0, -13(%rbp)
	movl	$0, -12(%rbp)
	movl	-4(%rbp), %eax
	subl	$1, %eax
	movl	%eax, -8(%rbp)
	jmp	.L6
.L7:
	movl	-12(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movzbl	(%rax), %eax
	movb	%al, -13(%rbp)
	movl	-8(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movl	-12(%rbp), %edx
	movslq	%edx, %rcx
	movq	-24(%rbp), %rdx
	addq	%rcx, %rdx
	movzbl	(%rax), %eax
	movb	%al, (%rdx)
	movl	-8(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rax, %rdx
	movzbl	-13(%rbp), %eax
	movb	%al, (%rdx)
	addl	$1, -12(%rbp)
	subl	$1, -8(%rbp)
.L6:
	movl	-4(%rbp), %eax
	movl	%eax, %edx
	shrl	$31, %edx
	addl	%edx, %eax
	sarl	%eax
	cmpl	%eax, -12(%rbp)
	jl	.L7
	nop
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE7:
	.size	revStr, .-revStr
	.globl	compare_int
	.type	compare_int, @function
compare_int:
.LFB8:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movq	%rdi, -8(%rbp)
	movq	%rsi, -16(%rbp)
	movq	-8(%rbp), %rax
	movl	(%rax), %edx
	movq	-16(%rbp), %rax
	movl	(%rax), %ecx
	movl	%edx, %eax
	subl	%ecx, %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE8:
	.size	compare_int, .-compare_int
	.globl	comp
	.type	comp, @function
comp:
.LFB9:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movq	%rdi, -40(%rbp)
	movq	%rsi, -48(%rbp)
	movq	-40(%rbp), %rax
	movq	(%rax), %rax
	movq	%rax, -16(%rbp)
	movq	-48(%rbp), %rax
	movq	(%rax), %rax
	movq	%rax, -8(%rbp)
	movl	-12(%rbp), %eax
	movl	%eax, -24(%rbp)
	movl	-4(%rbp), %eax
	movl	%eax, -20(%rbp)
	movl	-20(%rbp), %eax
	subl	-24(%rbp), %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE9:
	.size	comp, .-comp
	.globl	kai
	.type	kai, @function
kai:
.LFB10:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movl	%edi, -20(%rbp)
	cmpl	$0, -20(%rbp)
	jne	.L14
	movl	$1, %eax
	jmp	.L15
.L14:
	movl	$1, -8(%rbp)
	movl	$1, -4(%rbp)
	jmp	.L16
.L17:
	movl	-8(%rbp), %eax
	imull	-4(%rbp), %eax
	movl	%eax, -8(%rbp)
	addl	$1, -4(%rbp)
.L16:
	movl	-4(%rbp), %eax
	cmpl	-20(%rbp), %eax
	jle	.L17
	movl	-8(%rbp), %eax
.L15:
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE10:
	.size	kai, .-kai
	.section	.rodata
.LC0:
	.string	"%s"
	.text
	.globl	main
	.type	main, @function
main:
.LFB11:
	.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	$248, %rsp
	.cfi_offset 3, -24
	movq	%fs:40, %rax
	movq	%rax, -24(%rbp)
	xorl	%eax, %eax
	leaq	-240(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-128(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	$0, -244(%rbp)
	jmp	.L19
.L22:
	movl	-244(%rbp), %eax
	cltq
	movzbl	-240(%rbp,%rax), %eax
	testb	%al, %al
	je	.L20
	movl	-244(%rbp), %eax
	cltq
	movzbl	-240(%rbp,%rax), %eax
	movsbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
.L20:
	movl	-244(%rbp), %eax
	cltq
	movzbl	-128(%rbp,%rax), %eax
	testb	%al, %al
	je	.L21
	movl	-244(%rbp), %eax
	cltq
	movzbl	-128(%rbp,%rax), %eax
	movsbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
.L21:
	addl	$1, -244(%rbp)
.L19:
	movl	-244(%rbp), %eax
	movslq	%eax, %rbx
	leaq	-240(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	cmpq	%rax, %rbx
	jb	.L22
	movl	$0, %eax
	movq	-24(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L24
	call	__stack_chk_fail@PLT
.L24:
	movq	-8(%rbp), %rbx
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE11:
	.size	main, .-main
	.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
	.p2align 4
	.globl	gcd
	.type	gcd, @function
gcd:
.LFB51:
	.cfi_startproc
	endbr64
	movl	%edi, %eax
	movl	%esi, %edx
	.p2align 4,,10
	.p2align 3
.L2:
	movl	%edx, %ecx
	cltd
	idivl	%ecx
	movl	%ecx, %eax
	testl	%edx, %edx
	jne	.L2
	ret
	.cfi_endproc
.LFE51:
	.size	gcd, .-gcd
	.p2align 4
	.globl	revStr
	.type	revStr, @function
revStr:
.LFB52:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	movq	%rdi, %rbx
	call	strlen@PLT
	movl	%eax, %edi
	shrl	$31, %edi
	addl	%eax, %edi
	sarl	%edi
	cmpl	$1, %eax
	jle	.L5
	leal	-1(%rax), %edx
	xorl	%eax, %eax
	movslq	%edx, %rdx
	addq	%rbx, %rdx
	.p2align 4,,10
	.p2align 3
.L7:
	movzbl	(%rdx), %esi
	movzbl	(%rbx,%rax), %ecx
	subq	$1, %rdx
	movb	%sil, (%rbx,%rax)
	addq	$1, %rax
	movb	%cl, 1(%rdx)
	cmpl	%eax, %edi
	jg	.L7
.L5:
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE52:
	.size	revStr, .-revStr
	.p2align 4
	.globl	compare_int
	.type	compare_int, @function
compare_int:
.LFB53:
	.cfi_startproc
	endbr64
	movl	(%rdi), %eax
	subl	(%rsi), %eax
	ret
	.cfi_endproc
.LFE53:
	.size	compare_int, .-compare_int
	.p2align 4
	.globl	comp
	.type	comp, @function
comp:
.LFB54:
	.cfi_startproc
	endbr64
	movl	4(%rsi), %eax
	subl	4(%rdi), %eax
	ret
	.cfi_endproc
.LFE54:
	.size	comp, .-comp
	.p2align 4
	.globl	kai
	.type	kai, @function
kai:
.LFB55:
	.cfi_startproc
	endbr64
	testl	%edi, %edi
	jle	.L15
	addl	$1, %edi
	movl	$1, %eax
	movl	$1, %r8d
	.p2align 4,,10
	.p2align 3
.L14:
	imull	%eax, %r8d
	addl	$1, %eax
	cmpl	%edi, %eax
	jne	.L14
	movl	%r8d, %eax
	ret
	.p2align 4,,10
	.p2align 3
.L15:
	movl	$1, %r8d
	movl	%r8d, %eax
	ret
	.cfi_endproc
.LFE55:
	.size	kai, .-kai
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB56:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC0(%rip), %r13
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	movq	%r13, %rdi
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	xorl	%ebx, %ebx
	subq	$232, %rsp
	.cfi_def_cfa_offset 272
	movq	%fs:40, %rax
	movq	%rax, 216(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbp
	leaq	112(%rsp), %r12
	movq	%rbp, %rsi
	call	__isoc99_scanf@PLT
	movq	%r12, %rsi
	movq	%r13, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	jmp	.L18
	.p2align 4,,10
	.p2align 3
.L19:
	movsbl	(%r12,%rbx), %edi
	testb	%dil, %dil
	jne	.L30
.L20:
	addq	$1, %rbx
.L18:
	movq	%rbp, %rdi
	call	strlen@PLT
	cmpq	%rbx, %rax
	jbe	.L31
	movsbl	0(%rbp,%rbx), %edi
	testb	%dil, %dil
	je	.L19
	call	putchar@PLT
	movsbl	(%r12,%rbx), %edi
	testb	%dil, %dil
	je	.L20
.L30:
	call	putchar@PLT
	jmp	.L20
	.p2align 4,,10
	.p2align 3
.L31:
	movq	216(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L32
	addq	$232, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
.L32:
	.cfi_restore_state
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE56:
	.size	main, .-main
	.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
	.p2align 4
	.globl	gcd
	.type	gcd, @function
gcd:
.LFB51:
	.cfi_startproc
	endbr64
	movl	%edi, %eax
	movl	%esi, %edx
	.p2align 4,,10
	.p2align 3
.L2:
	movl	%edx, %ecx
	cltd
	idivl	%ecx
	movl	%ecx, %eax
	testl	%edx, %edx
	jne	.L2
	ret
	.cfi_endproc
.LFE51:
	.size	gcd, .-gcd
	.p2align 4
	.globl	revStr
	.type	revStr, @function
revStr:
.LFB52:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	movq	%rdi, %rbx
	call	strlen@PLT
	movl	%eax, %edi
	shrl	$31, %edi
	addl	%eax, %edi
	sarl	%edi
	cmpl	$1, %eax
	jle	.L5
	leal	-1(%rax), %edx
	xorl	%eax, %eax
	movslq	%edx, %rdx
	addq	%rbx, %rdx
	.p2align 4,,10
	.p2align 3
.L7:
	movzbl	(%rdx), %esi
	movzbl	(%rbx,%rax), %ecx
	subq	$1, %rdx
	movb	%sil, (%rbx,%rax)
	addq	$1, %rax
	movb	%cl, 1(%rdx)
	cmpl	%eax, %edi
	jg	.L7
.L5:
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE52:
	.size	revStr, .-revStr
	.p2align 4
	.globl	compare_int
	.type	compare_int, @function
compare_int:
.LFB53:
	.cfi_startproc
	endbr64
	movl	(%rdi), %eax
	subl	(%rsi), %eax
	ret
	.cfi_endproc
.LFE53:
	.size	compare_int, .-compare_int
	.p2align 4
	.globl	comp
	.type	comp, @function
comp:
.LFB54:
	.cfi_startproc
	endbr64
	movl	4(%rsi), %eax
	subl	4(%rdi), %eax
	ret
	.cfi_endproc
.LFE54:
	.size	comp, .-comp
	.p2align 4
	.globl	kai
	.type	kai, @function
kai:
.LFB55:
	.cfi_startproc
	endbr64
	testl	%edi, %edi
	jle	.L15
	addl	$1, %edi
	movl	$1, %eax
	movl	$1, %r8d
	.p2align 4,,10
	.p2align 3
.L14:
	imull	%eax, %r8d
	addl	$1, %eax
	cmpl	%edi, %eax
	jne	.L14
	movl	%r8d, %eax
	ret
	.p2align 4,,10
	.p2align 3
.L15:
	movl	$1, %r8d
	movl	%r8d, %eax
	ret
	.cfi_endproc
.LFE55:
	.size	kai, .-kai
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB56:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC0(%rip), %r13
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	movq	%r13, %rdi
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	xorl	%ebx, %ebx
	subq	$232, %rsp
	.cfi_def_cfa_offset 272
	movq	%fs:40, %rax
	movq	%rax, 216(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbp
	leaq	112(%rsp), %r12
	movq	%rbp, %rsi
	call	__isoc99_scanf@PLT
	movq	%r12, %rsi
	movq	%r13, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	jmp	.L18
	.p2align 4,,10
	.p2align 3
.L19:
	movsbl	(%r12,%rbx), %edi
	testb	%dil, %dil
	jne	.L30
.L20:
	addq	$1, %rbx
.L18:
	movq	%rbp, %rdi
	call	strlen@PLT
	cmpq	%rbx, %rax
	jbe	.L31
	movsbl	0(%rbp,%rbx), %edi
	testb	%dil, %dil
	je	.L19
	call	putchar@PLT
	movsbl	(%r12,%rbx), %edi
	testb	%dil, %dil
	je	.L20
.L30:
	call	putchar@PLT
	jmp	.L20
	.p2align 4,,10
	.p2align 3
.L31:
	movq	216(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L32
	addq	$232, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
.L32:
	.cfi_restore_state
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE56:
	.size	main, .-main
	.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<stdlib.h>
#include<string.h>
#include<math.h>
#define rep(i,n) for(int i=0;i<n;i++)
int gcd(int a, int b){
    int r=1;
    while(r!=0){
        r=a%b;
        a=b;
        b=r;
    }
    return a;
}
typedef long long ll;
void revStr(char* str){
    int size = strlen(str);
    int i,j;
    char tmp = {0};
    for(i = 0, j = size - 1; i < size / 2; i++, j--){
        tmp = str[i];
        str[i] = str[j];
        str[j] = tmp;
    }return;
}
typedef struct{
    int a,b;
}data;

//昇順
int compare_int(const void *a, const void *b)
{
    return *(int*)a - *(int*)b;
}
//構造体降順
int comp( const void *c1, const void *c2 )
{
  data test1 = *(data *)c1;
  data test2 = *(data *)c2;
  int tmp1 = test1.b;   /* b を基準とする */
  int tmp2 = test2.b;
  return tmp2 - tmp1;
}


int kai(int n){
    if(n==0){
        return 1;
    }
    int sum=1;
    for(int i=1;i<=n;i++){
        sum*=i;
    }
    return sum;
}

int main(){
    char o[100],e[100];
    scanf("%s",o);
    scanf("%s",e);
    for(int i=0;i<strlen(o);i++){
        if(o[i]==0){
            ;
        }else{
            printf("%c",o[i]);
        }
        if(e[i]==0){
            ;
        }else{
            printf("%c",e[i]);
        }
    }
}

atcoderbeeinnercontgst
atcoderregularcontest
 xyz
acc
 atcoderbeeinnercontgst
atcoaerreguldrcontest
 xyz
adc
 atcoderbfeinnercontgst
atcoaerreguldrcontest
 xyy
adc
 atcoderbfeinnercontgst
atcoaerreguldrcnntest
 xyy
acd
 ftcoderbaeinnercontgst
atcoaerreguldrcnntest
 yyx
acd

aattccooddeerrbreeegiunlnaerrccoonnttegsstt xayczc aattccoodaeerrbreeegiunlnderrccoonnttegsstt xaydzc aattccoodaeerrbrfeegiunlnderrccoonnttegsstt xaydyc aattccoodaeerrbrfeegiunlnderrccnonnttegsstt xaycyd fattccoodaeerrbraeegiunlnderrccnonnttegsstt yaycxd
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<stdlib.h>
#include<string.h>
#include<math.h>
#define rep(i,n) for(int i=0;i<n;i++)
int gcd(int a, int b){
    int r=1;
    while(r!=0){
        r=a%b;
        a=b;
        b=r;
    }
    return a;
}
typedef long long ll;
void revStr(char* str){
    int size = strlen(str);
    int i,j;
    char tmp = {0};
    for(i = 0, j = size - 1; i < size / 2; i++, j--){
        tmp = str[i];
        str[i] = str[j];
        str[j] = tmp;
    }return;
}
typedef struct{
    int a,b;
}data;

//昇順
int compare_int(const void *a, const void *b)
{
    return *(int*)a - *(int*)b;
}
//構造体降順
int comp( const void *c1, const void *c2 )
{
  data test1 = *(data *)c1;
  data test2 = *(data *)c2;
  int tmp1 = test1.b;   /* b を基準とする */
  int tmp2 = test2.b;
  return tmp2 - tmp1;
}


int kai(int n){
    if(n==0){
        return 1;
    }
    int sum=1;
    for(int i=1;i<=n;i++){
        sum*=i;
    }
    return sum;
}

int main(){
    char o[100],e[100];
    scanf("%s",o);
    scanf("%s",e);
    for(int i=0;i<strlen(o);i++){
        if(o[i]==0){
            ;
        }else{
            printf("%c",o[i]);
        }
        if(e[i]==0){
            ;
        }else{
            printf("%c",e[i]);
        }
    }
}
```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.globl	gcd
	.type	gcd, @function
gcd:
.LFB6:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movl	%edi, -20(%rbp)
	movl	%esi, -24(%rbp)
	movl	$1, -4(%rbp)
	jmp	.L2
.L3:
	movl	-20(%rbp), %eax
	cltd
	idivl	-24(%rbp)
	movl	%edx, -4(%rbp)
	movl	-24(%rbp), %eax
	movl	%eax, -20(%rbp)
	movl	-4(%rbp), %eax
	movl	%eax, -24(%rbp)
.L2:
	cmpl	$0, -4(%rbp)
	jne	.L3
	movl	-20(%rbp), %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE6:
	.size	gcd, .-gcd
	.globl	revStr
	.type	revStr, @function
revStr:
.LFB7:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$32, %rsp
	movq	%rdi, -24(%rbp)
	movq	-24(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -4(%rbp)
	movb	$0, -13(%rbp)
	movl	$0, -12(%rbp)
	movl	-4(%rbp), %eax
	subl	$1, %eax
	movl	%eax, -8(%rbp)
	jmp	.L6
.L7:
	movl	-12(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movzbl	(%rax), %eax
	movb	%al, -13(%rbp)
	movl	-8(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movl	-12(%rbp), %edx
	movslq	%edx, %rcx
	movq	-24(%rbp), %rdx
	addq	%rcx, %rdx
	movzbl	(%rax), %eax
	movb	%al, (%rdx)
	movl	-8(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rax, %rdx
	movzbl	-13(%rbp), %eax
	movb	%al, (%rdx)
	addl	$1, -12(%rbp)
	subl	$1, -8(%rbp)
.L6:
	movl	-4(%rbp), %eax
	movl	%eax, %edx
	shrl	$31, %edx
	addl	%edx, %eax
	sarl	%eax
	cmpl	%eax, -12(%rbp)
	jl	.L7
	nop
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE7:
	.size	revStr, .-revStr
	.globl	compare_int
	.type	compare_int, @function
compare_int:
.LFB8:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movq	%rdi, -8(%rbp)
	movq	%rsi, -16(%rbp)
	movq	-8(%rbp), %rax
	movl	(%rax), %edx
	movq	-16(%rbp), %rax
	movl	(%rax), %ecx
	movl	%edx, %eax
	subl	%ecx, %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE8:
	.size	compare_int, .-compare_int
	.globl	comp
	.type	comp, @function
comp:
.LFB9:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movq	%rdi, -40(%rbp)
	movq	%rsi, -48(%rbp)
	movq	-40(%rbp), %rax
	movq	(%rax), %rax
	movq	%rax, -16(%rbp)
	movq	-48(%rbp), %rax
	movq	(%rax), %rax
	movq	%rax, -8(%rbp)
	movl	-12(%rbp), %eax
	movl	%eax, -24(%rbp)
	movl	-4(%rbp), %eax
	movl	%eax, -20(%rbp)
	movl	-20(%rbp), %eax
	subl	-24(%rbp), %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE9:
	.size	comp, .-comp
	.globl	kai
	.type	kai, @function
kai:
.LFB10:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movl	%edi, -20(%rbp)
	cmpl	$0, -20(%rbp)
	jne	.L14
	movl	$1, %eax
	jmp	.L15
.L14:
	movl	$1, -8(%rbp)
	movl	$1, -4(%rbp)
	jmp	.L16
.L17:
	movl	-8(%rbp), %eax
	imull	-4(%rbp), %eax
	movl	%eax, -8(%rbp)
	addl	$1, -4(%rbp)
.L16:
	movl	-4(%rbp), %eax
	cmpl	-20(%rbp), %eax
	jle	.L17
	movl	-8(%rbp), %eax
.L15:
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE10:
	.size	kai, .-kai
	.section	.rodata
.LC0:
	.string	"%s"
	.text
	.globl	main
	.type	main, @function
main:
.LFB11:
	.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	$248, %rsp
	.cfi_offset 3, -24
	movq	%fs:40, %rax
	movq	%rax, -24(%rbp)
	xorl	%eax, %eax
	leaq	-240(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-128(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	$0, -244(%rbp)
	jmp	.L19
.L22:
	movl	-244(%rbp), %eax
	cltq
	movzbl	-240(%rbp,%rax), %eax
	testb	%al, %al
	je	.L20
	movl	-244(%rbp), %eax
	cltq
	movzbl	-240(%rbp,%rax), %eax
	movsbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
.L20:
	movl	-244(%rbp), %eax
	cltq
	movzbl	-128(%rbp,%rax), %eax
	testb	%al, %al
	je	.L21
	movl	-244(%rbp), %eax
	cltq
	movzbl	-128(%rbp,%rax), %eax
	movsbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
.L21:
	addl	$1, -244(%rbp)
.L19:
	movl	-244(%rbp), %eax
	movslq	%eax, %rbx
	leaq	-240(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	cmpq	%rax, %rbx
	jb	.L22
	movl	$0, %eax
	movq	-24(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L24
	call	__stack_chk_fail@PLT
.L24:
	movq	-8(%rbp), %rbx
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE11:
	.size	main, .-main
	.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
	.globl	gcd
	.type	gcd, @function
gcd:
.LFB6:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movl	%edi, -20(%rbp)
	movl	%esi, -24(%rbp)
	movl	$1, -4(%rbp)
	jmp	.L2
.L3:
	movl	-20(%rbp), %eax
	cltd
	idivl	-24(%rbp)
	movl	%edx, -4(%rbp)
	movl	-24(%rbp), %eax
	movl	%eax, -20(%rbp)
	movl	-4(%rbp), %eax
	movl	%eax, -24(%rbp)
.L2:
	cmpl	$0, -4(%rbp)
	jne	.L3
	movl	-20(%rbp), %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE6:
	.size	gcd, .-gcd
	.globl	revStr
	.type	revStr, @function
revStr:
.LFB7:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$32, %rsp
	movq	%rdi, -24(%rbp)
	movq	-24(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -4(%rbp)
	movb	$0, -13(%rbp)
	movl	$0, -12(%rbp)
	movl	-4(%rbp), %eax
	subl	$1, %eax
	movl	%eax, -8(%rbp)
	jmp	.L6
.L7:
	movl	-12(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movzbl	(%rax), %eax
	movb	%al, -13(%rbp)
	movl	-8(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rdx, %rax
	movl	-12(%rbp), %edx
	movslq	%edx, %rcx
	movq	-24(%rbp), %rdx
	addq	%rcx, %rdx
	movzbl	(%rax), %eax
	movb	%al, (%rdx)
	movl	-8(%rbp), %eax
	movslq	%eax, %rdx
	movq	-24(%rbp), %rax
	addq	%rax, %rdx
	movzbl	-13(%rbp), %eax
	movb	%al, (%rdx)
	addl	$1, -12(%rbp)
	subl	$1, -8(%rbp)
.L6:
	movl	-4(%rbp), %eax
	movl	%eax, %edx
	shrl	$31, %edx
	addl	%edx, %eax
	sarl	%eax
	cmpl	%eax, -12(%rbp)
	jl	.L7
	nop
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE7:
	.size	revStr, .-revStr
	.globl	compare_int
	.type	compare_int, @function
compare_int:
.LFB8:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movq	%rdi, -8(%rbp)
	movq	%rsi, -16(%rbp)
	movq	-8(%rbp), %rax
	movl	(%rax), %edx
	movq	-16(%rbp), %rax
	movl	(%rax), %ecx
	movl	%edx, %eax
	subl	%ecx, %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE8:
	.size	compare_int, .-compare_int
	.globl	comp
	.type	comp, @function
comp:
.LFB9:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movq	%rdi, -40(%rbp)
	movq	%rsi, -48(%rbp)
	movq	-40(%rbp), %rax
	movq	(%rax), %rax
	movq	%rax, -16(%rbp)
	movq	-48(%rbp), %rax
	movq	(%rax), %rax
	movq	%rax, -8(%rbp)
	movl	-12(%rbp), %eax
	movl	%eax, -24(%rbp)
	movl	-4(%rbp), %eax
	movl	%eax, -20(%rbp)
	movl	-20(%rbp), %eax
	subl	-24(%rbp), %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE9:
	.size	comp, .-comp
	.globl	kai
	.type	kai, @function
kai:
.LFB10:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	movl	%edi, -20(%rbp)
	cmpl	$0, -20(%rbp)
	jne	.L14
	movl	$1, %eax
	jmp	.L15
.L14:
	movl	$1, -8(%rbp)
	movl	$1, -4(%rbp)
	jmp	.L16
.L17:
	movl	-8(%rbp), %eax
	imull	-4(%rbp), %eax
	movl	%eax, -8(%rbp)
	addl	$1, -4(%rbp)
.L16:
	movl	-4(%rbp), %eax
	cmpl	-20(%rbp), %eax
	jle	.L17
	movl	-8(%rbp), %eax
.L15:
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE10:
	.size	kai, .-kai
	.section	.rodata
.LC0:
	.string	"%s"
	.text
	.globl	main
	.type	main, @function
main:
.LFB11:
	.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	$248, %rsp
	.cfi_offset 3, -24
	movq	%fs:40, %rax
	movq	%rax, -24(%rbp)
	xorl	%eax, %eax
	leaq	-240(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	leaq	-128(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	$0, -244(%rbp)
	jmp	.L19
.L22:
	movl	-244(%rbp), %eax
	cltq
	movzbl	-240(%rbp,%rax), %eax
	testb	%al, %al
	je	.L20
	movl	-244(%rbp), %eax
	cltq
	movzbl	-240(%rbp,%rax), %eax
	movsbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
.L20:
	movl	-244(%rbp), %eax
	cltq
	movzbl	-128(%rbp,%rax), %eax
	testb	%al, %al
	je	.L21
	movl	-244(%rbp), %eax
	cltq
	movzbl	-128(%rbp,%rax), %eax
	movsbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
.L21:
	addl	$1, -244(%rbp)
.L19:
	movl	-244(%rbp), %eax
	movslq	%eax, %rbx
	leaq	-240(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	cmpq	%rax, %rbx
	jb	.L22
	movl	$0, %eax
	movq	-24(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L24
	call	__stack_chk_fail@PLT
.L24:
	movq	-8(%rbp), %rbx
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE11:
	.size	main, .-main
	.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:
