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

```c
a;main(t,s)char*s,*t;{for(gets(s),t=s+strlen(s);s<--t;)a+=*s++!=*t;printf("%d",a);}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.globl	a
	.bss
	.align 4
	.type	a, @object
	.size	a, 4
a:
	.zero	4
	.section	.rodata
.LC0:
	.string	"%d"
	.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
	subq	$16, %rsp
	movq	%rdi, -8(%rbp)
	movq	%rsi, -16(%rbp)
	movq	-16(%rbp), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	gets@PLT
	movq	-16(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movq	-16(%rbp), %rdx
	addq	%rdx, %rax
	movq	%rax, -8(%rbp)
	jmp	.L2
.L3:
	movq	-16(%rbp), %rax
	leaq	1(%rax), %rdx
	movq	%rdx, -16(%rbp)
	movzbl	(%rax), %edx
	movq	-8(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	%al, %dl
	setne	%al
	movzbl	%al, %edx
	movl	a(%rip), %eax
	addl	%edx, %eax
	movl	%eax, a(%rip)
.L2:
	subq	$1, -8(%rbp)
	movq	-8(%rbp), %rax
	cmpq	-16(%rbp), %rax
	ja	.L3
	movl	a(%rip), %eax
	movl	%eax, %esi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$0, %eax
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.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"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	movq	%rsi, %rdi
	movq	%rsi, %rbx
	xorl	%eax, %eax
	call	gets@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	movl	a(%rip), %esi
	leaq	-1(%rbx,%rax), %rax
	cmpq	%rax, %rbx
	jnb	.L4
	.p2align 4,,10
	.p2align 3
.L3:
	addq	$1, %rbx
	movzbl	(%rax), %ecx
	xorl	%edx, %edx
	cmpb	%cl, -1(%rbx)
	setne	%dl
	subq	$1, %rax
	addl	%edx, %esi
	movl	%esi, a(%rip)
	cmpq	%rbx, %rax
	ja	.L3
.L4:
	leaq	.LC0(%rip), %rdi
	xorl	%eax, %eax
	call	printf@PLT
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.globl	a
	.bss
	.align 4
	.type	a, @object
	.size	a, 4
a:
	.zero	4
	.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"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	movq	%rsi, %rdi
	movq	%rsi, %rbx
	xorl	%eax, %eax
	call	gets@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	movl	a(%rip), %esi
	leaq	-1(%rbx,%rax), %rax
	cmpq	%rax, %rbx
	jnb	.L4
	.p2align 4,,10
	.p2align 3
.L3:
	addq	$1, %rbx
	movzbl	(%rax), %ecx
	xorl	%edx, %edx
	cmpb	%cl, -1(%rbx)
	setne	%dl
	subq	$1, %rax
	addl	%edx, %esi
	movl	%esi, a(%rip)
	cmpq	%rbx, %rax
	ja	.L3
.L4:
	leaq	.LC0(%rip), %rdi
	xorl	%eax, %eax
	call	printf@PLT
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.globl	a
	.bss
	.align 4
	.type	a, @object
	.size	a, 4
a:
	.zero	4
	.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:

a;main(t,s)char*s,*t;{for(gets(s),t=s+strlen(s);s<--t;)a+=*s++!=*t;printf("%d",a);}
aacdabc
 redocder
 vwwvvv
 rdebrdeo
 uuxxuu
 wvvvvv
 aacbadc
 reeocddr
 vvvvvw
 cdabcaa

3 1 2 4 0 1 3 3 1 3
Given the following C code and unoptimized assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
a;main(t,s)char*s,*t;{for(gets(s),t=s+strlen(s);s<--t;)a+=*s++!=*t;printf("%d",a);}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.globl	a
	.bss
	.align 4
	.type	a, @object
	.size	a, 4
a:
	.zero	4
	.section	.rodata
.LC0:
	.string	"%d"
	.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
	subq	$16, %rsp
	movq	%rdi, -8(%rbp)
	movq	%rsi, -16(%rbp)
	movq	-16(%rbp), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	gets@PLT
	movq	-16(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movq	-16(%rbp), %rdx
	addq	%rdx, %rax
	movq	%rax, -8(%rbp)
	jmp	.L2
.L3:
	movq	-16(%rbp), %rax
	leaq	1(%rax), %rdx
	movq	%rdx, -16(%rbp)
	movzbl	(%rax), %edx
	movq	-8(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	%al, %dl
	setne	%al
	movzbl	%al, %edx
	movl	a(%rip), %eax
	addl	%edx, %eax
	movl	%eax, a(%rip)
.L2:
	subq	$1, -8(%rbp)
	movq	-8(%rbp), %rax
	cmpq	-16(%rbp), %rax
	ja	.L3
	movl	a(%rip), %eax
	movl	%eax, %esi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$0, %eax
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.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	a
	.bss
	.align 4
	.type	a, @object
	.size	a, 4
a:
	.zero	4
	.section	.rodata
.LC0:
	.string	"%d"
	.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
	subq	$16, %rsp
	movq	%rdi, -8(%rbp)
	movq	%rsi, -16(%rbp)
	movq	-16(%rbp), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	gets@PLT
	movq	-16(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movq	-16(%rbp), %rdx
	addq	%rdx, %rax
	movq	%rax, -8(%rbp)
	jmp	.L2
.L3:
	movq	-16(%rbp), %rax
	leaq	1(%rax), %rdx
	movq	%rdx, -16(%rbp)
	movzbl	(%rax), %edx
	movq	-8(%rbp), %rax
	movzbl	(%rax), %eax
	cmpb	%al, %dl
	setne	%al
	movzbl	%al, %edx
	movl	a(%rip), %eax
	addl	%edx, %eax
	movl	%eax, a(%rip)
.L2:
	subq	$1, -8(%rbp)
	movq	-8(%rbp), %rax
	cmpq	-16(%rbp), %rax
	ja	.L3
	movl	a(%rip), %eax
	movl	%eax, %esi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$0, %eax
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.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:
