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>

#define LINEMAX 100002

int main(int argc, char *argv[]){

	char line[LINEMAX];

	fgets(line, sizeof(line), stdin);

	char *fromHead = line;
	char *fromTail = &line[strlen(line)-2];
	int   sunukeCnt = 0;

	//printf("fromHead is %c\n", *fromHead);
	//printf("fromTail is %c\n", *fromTail);

	while(1){

		if(fromTail == fromHead || (fromTail+1) == fromHead){
			break;
		}

		if(*fromHead == *fromTail){
			fromHead++;
			fromTail--;
			continue;
		}

		if(*fromHead == 'x'){
			sunukeCnt++;
			fromHead++;
			continue;
		}

		if(*fromTail == 'x'){
			sunukeCnt++;
			fromTail--;
			continue;
		}

		sunukeCnt = -1;
		break;
	}

	printf("%d\n", sunukeCnt);
	return 0;
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d\n"
	.text
	.globl	main
	.type	main, @function
main:
.LFB6:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	leaq	-98304(%rsp), %r11
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	subq	$1760, %rsp
	movl	%edi, -100052(%rbp)
	movq	%rsi, -100064(%rbp)
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	movq	stdin(%rip), %rdx
	leaq	-100016(%rbp), %rax
	movl	$100002, %esi
	movq	%rax, %rdi
	call	fgets@PLT
	leaq	-100016(%rbp), %rax
	movq	%rax, -100032(%rbp)
	leaq	-100016(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	leaq	-2(%rax), %rdx
	leaq	-100016(%rbp), %rax
	addq	%rdx, %rax
	movq	%rax, -100024(%rbp)
	movl	$0, -100036(%rbp)
.L7:
	movq	-100024(%rbp), %rax
	cmpq	-100032(%rbp), %rax
	je	.L2
	movq	-100024(%rbp), %rax
	addq	$1, %rax
	cmpq	%rax, -100032(%rbp)
	je	.L2
	movq	-100032(%rbp), %rax
	movzbl	(%rax), %edx
	movq	-100024(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	%al, %dl
	jne	.L3
	addq	$1, -100032(%rbp)
	subq	$1, -100024(%rbp)
	jmp	.L4
.L3:
	movq	-100032(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	$120, %al
	jne	.L5
	addl	$1, -100036(%rbp)
	addq	$1, -100032(%rbp)
	jmp	.L4
.L5:
	movq	-100024(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	$120, %al
	jne	.L6
	addl	$1, -100036(%rbp)
	subq	$1, -100024(%rbp)
	jmp	.L4
.L6:
	movl	$-1, -100036(%rbp)
	jmp	.L2
.L4:
	jmp	.L7
.L2:
	movl	-100036(%rbp), %eax
	movl	%eax, %esi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L9
	call	__stack_chk_fail@PLT
.L9:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE6:
	.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
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	-98304(%rsp), %r11
	.cfi_def_cfa 11, 98320
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$1712, %rsp
	.cfi_def_cfa_offset 100032
	movq	stdin(%rip), %rdx
	movl	$100002, %esi
	movq	%fs:40, %rax
	movq	%rax, 100008(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rdi
	call	fgets@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	leaq	-2(%rbx,%rax), %rax
	cmpq	%rbx, %rax
	je	.L8
	leaq	1(%rax), %rdx
	xorl	%r8d, %r8d
	cmpq	%rdx, %rbx
	je	.L2
.L3:
	movzbl	(%rbx), %edx
	movzbl	(%rax), %ecx
	cmpb	%cl, %dl
	je	.L13
	cmpb	$120, %dl
	je	.L14
	cmpb	$120, %cl
	je	.L15
	movl	$-1, %r8d
.L2:
	xorl	%eax, %eax
	movl	%r8d, %edx
	movl	$1, %edi
	leaq	.LC0(%rip), %rsi
	call	__printf_chk@PLT
	movq	100008(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L16
	addq	$100016, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L13:
	.cfi_restore_state
	addq	$1, %rbx
	subq	$1, %rax
.L5:
	cmpq	%rbx, %rax
	je	.L2
	leaq	1(%rax), %rdx
	cmpq	%rdx, %rbx
	jne	.L3
	jmp	.L2
.L14:
	addl	$1, %r8d
	addq	$1, %rbx
	jmp	.L5
.L15:
	addl	$1, %r8d
	subq	$1, %rax
	jmp	.L5
.L8:
	xorl	%r8d, %r8d
	jmp	.L2
.L16:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.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
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	-98304(%rsp), %r11
	.cfi_def_cfa 11, 98320
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$1712, %rsp
	.cfi_def_cfa_offset 100032
	movq	stdin(%rip), %rdx
	movl	$100002, %esi
	movq	%fs:40, %rax
	movq	%rax, 100008(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rdi
	call	fgets@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	leaq	-2(%rbx,%rax), %rax
	cmpq	%rbx, %rax
	je	.L8
	leaq	1(%rax), %rdx
	xorl	%r8d, %r8d
	cmpq	%rdx, %rbx
	je	.L2
.L3:
	movzbl	(%rbx), %edx
	movzbl	(%rax), %ecx
	cmpb	%cl, %dl
	je	.L13
	cmpb	$120, %dl
	je	.L14
	cmpb	$120, %cl
	je	.L15
	movl	$-1, %r8d
.L2:
	xorl	%eax, %eax
	movl	%r8d, %edx
	movl	$1, %edi
	leaq	.LC0(%rip), %rsi
	call	__printf_chk@PLT
	movq	100008(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L16
	addq	$100016, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L13:
	.cfi_restore_state
	addq	$1, %rbx
	subq	$1, %rax
.L5:
	cmpq	%rbx, %rax
	je	.L2
	leaq	1(%rax), %rdx
	cmpq	%rdx, %rbx
	jne	.L3
	jmp	.L2
.L14:
	addl	$1, %r8d
	addq	$1, %rbx
	jmp	.L5
.L15:
	addl	$1, %r8d
	subq	$1, %rax
	jmp	.L5
.L8:
	xorl	%r8d, %r8d
	jmp	.L2
.L16:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.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>

#define LINEMAX 100002

int main(int argc, char *argv[]){

	char line[LINEMAX];

	fgets(line, sizeof(line), stdin);

	char *fromHead = line;
	char *fromTail = &line[strlen(line)-2];
	int   sunukeCnt = 0;

	//printf("fromHead is %c\n", *fromHead);
	//printf("fromTail is %c\n", *fromTail);

	while(1){

		if(fromTail == fromHead || (fromTail+1) == fromHead){
			break;
		}

		if(*fromHead == *fromTail){
			fromHead++;
			fromTail--;
			continue;
		}

		if(*fromHead == 'x'){
			sunukeCnt++;
			fromHead++;
			continue;
		}

		if(*fromTail == 'x'){
			sunukeCnt++;
			fromTail--;
			continue;
		}

		sunukeCnt = -1;
		break;
	}

	printf("%d\n", sunukeCnt);
	return 0;
}
b
 axbax
 `b
 xxxo
 tpxt
 c
 bxbax
 b`
 yxxo
 d

0
 2
 -1
 3
 1
 0
 -1
 -1
 -1
 0

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>

#define LINEMAX 100002

int main(int argc, char *argv[]){

	char line[LINEMAX];

	fgets(line, sizeof(line), stdin);

	char *fromHead = line;
	char *fromTail = &line[strlen(line)-2];
	int   sunukeCnt = 0;

	//printf("fromHead is %c\n", *fromHead);
	//printf("fromTail is %c\n", *fromTail);

	while(1){

		if(fromTail == fromHead || (fromTail+1) == fromHead){
			break;
		}

		if(*fromHead == *fromTail){
			fromHead++;
			fromTail--;
			continue;
		}

		if(*fromHead == 'x'){
			sunukeCnt++;
			fromHead++;
			continue;
		}

		if(*fromTail == 'x'){
			sunukeCnt++;
			fromTail--;
			continue;
		}

		sunukeCnt = -1;
		break;
	}

	printf("%d\n", sunukeCnt);
	return 0;
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d\n"
	.text
	.globl	main
	.type	main, @function
main:
.LFB6:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	leaq	-98304(%rsp), %r11
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	subq	$1760, %rsp
	movl	%edi, -100052(%rbp)
	movq	%rsi, -100064(%rbp)
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	movq	stdin(%rip), %rdx
	leaq	-100016(%rbp), %rax
	movl	$100002, %esi
	movq	%rax, %rdi
	call	fgets@PLT
	leaq	-100016(%rbp), %rax
	movq	%rax, -100032(%rbp)
	leaq	-100016(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	leaq	-2(%rax), %rdx
	leaq	-100016(%rbp), %rax
	addq	%rdx, %rax
	movq	%rax, -100024(%rbp)
	movl	$0, -100036(%rbp)
.L7:
	movq	-100024(%rbp), %rax
	cmpq	-100032(%rbp), %rax
	je	.L2
	movq	-100024(%rbp), %rax
	addq	$1, %rax
	cmpq	%rax, -100032(%rbp)
	je	.L2
	movq	-100032(%rbp), %rax
	movzbl	(%rax), %edx
	movq	-100024(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	%al, %dl
	jne	.L3
	addq	$1, -100032(%rbp)
	subq	$1, -100024(%rbp)
	jmp	.L4
.L3:
	movq	-100032(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	$120, %al
	jne	.L5
	addl	$1, -100036(%rbp)
	addq	$1, -100032(%rbp)
	jmp	.L4
.L5:
	movq	-100024(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	$120, %al
	jne	.L6
	addl	$1, -100036(%rbp)
	subq	$1, -100024(%rbp)
	jmp	.L4
.L6:
	movl	$-1, -100036(%rbp)
	jmp	.L2
.L4:
	jmp	.L7
.L2:
	movl	-100036(%rbp), %eax
	movl	%eax, %esi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L9
	call	__stack_chk_fail@PLT
.L9:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE6:
	.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
	.section	.rodata
.LC0:
	.string	"%d\n"
	.text
	.globl	main
	.type	main, @function
main:
.LFB6:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	leaq	-98304(%rsp), %r11
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	subq	$1760, %rsp
	movl	%edi, -100052(%rbp)
	movq	%rsi, -100064(%rbp)
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	movq	stdin(%rip), %rdx
	leaq	-100016(%rbp), %rax
	movl	$100002, %esi
	movq	%rax, %rdi
	call	fgets@PLT
	leaq	-100016(%rbp), %rax
	movq	%rax, -100032(%rbp)
	leaq	-100016(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	leaq	-2(%rax), %rdx
	leaq	-100016(%rbp), %rax
	addq	%rdx, %rax
	movq	%rax, -100024(%rbp)
	movl	$0, -100036(%rbp)
.L7:
	movq	-100024(%rbp), %rax
	cmpq	-100032(%rbp), %rax
	je	.L2
	movq	-100024(%rbp), %rax
	addq	$1, %rax
	cmpq	%rax, -100032(%rbp)
	je	.L2
	movq	-100032(%rbp), %rax
	movzbl	(%rax), %edx
	movq	-100024(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	%al, %dl
	jne	.L3
	addq	$1, -100032(%rbp)
	subq	$1, -100024(%rbp)
	jmp	.L4
.L3:
	movq	-100032(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	$120, %al
	jne	.L5
	addl	$1, -100036(%rbp)
	addq	$1, -100032(%rbp)
	jmp	.L4
.L5:
	movq	-100024(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	$120, %al
	jne	.L6
	addl	$1, -100036(%rbp)
	subq	$1, -100024(%rbp)
	jmp	.L4
.L6:
	movl	$-1, -100036(%rbp)
	jmp	.L2
.L4:
	jmp	.L7
.L2:
	movl	-100036(%rbp), %eax
	movl	%eax, %esi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L9
	call	__stack_chk_fail@PLT
.L9:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE6:
	.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:
