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>

int main(void) {
	char S[128];
	int i;
	int len;
	if (scanf("%127s", S) != 1) return 1;
	len = (int)strlen(S);
	if (len == 2) {
		puts(S);
	} else {
		for (i = len - 1; i >= 0; i--) putchar((unsigned char)S[i]);
		putchar('\n');
	}
	return 0;
}
```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%127s"
	.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	$160, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	leaq	-144(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	cmpl	$1, %eax
	je	.L2
	movl	$1, %eax
	jmp	.L8
.L2:
	leaq	-144(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -148(%rbp)
	cmpl	$2, -148(%rbp)
	jne	.L4
	leaq	-144(%rbp), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L5
.L4:
	movl	-148(%rbp), %eax
	subl	$1, %eax
	movl	%eax, -152(%rbp)
	jmp	.L6
.L7:
	movl	-152(%rbp), %eax
	cltq
	movzbl	-144(%rbp,%rax), %eax
	movzbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
	subl	$1, -152(%rbp)
.L6:
	cmpl	$0, -152(%rbp)
	jns	.L7
	movl	$10, %edi
	call	putchar@PLT
.L5:
	movl	$0, %eax
.L8:
	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
.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	"%127s"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB35:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	leaq	.LC0(%rip), %rdi
	pushq	%rbx
	.cfi_def_cfa_offset 24
	.cfi_offset 3, -24
	subq	$152, %rsp
	.cfi_def_cfa_offset 176
	movq	%fs:40, %rax
	movq	%rax, 136(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbp
	movq	%rbp, %rsi
	call	__isoc99_scanf@PLT
	movl	%eax, %r8d
	movl	$1, %eax
	cmpl	$1, %r8d
	jne	.L1
	movq	%rbp, %rdi
	call	strlen@PLT
	cmpq	$2, %rax
	je	.L14
	leal	-1(%rax), %ebx
	testl	%eax, %eax
	je	.L4
	movslq	%ebx, %rbx
	.p2align 4,,10
	.p2align 3
.L5:
	movzbl	0(%rbp,%rbx), %edi
	movq	stdout(%rip), %rsi
	subq	$1, %rbx
	call	putc@PLT
	cmpl	$-1, %ebx
	jne	.L5
.L4:
	movq	stdout(%rip), %rsi
	movl	$10, %edi
	call	putc@PLT
	xorl	%eax, %eax
.L1:
	movq	136(%rsp), %rdx
	subq	%fs:40, %rdx
	jne	.L15
	addq	$152, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 24
	popq	%rbx
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L14:
	.cfi_restore_state
	movq	%rbp, %rdi
	call	puts@PLT
	xorl	%eax, %eax
	jmp	.L1
.L15:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE35:
	.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	"%127s"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB35:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	leaq	.LC0(%rip), %rdi
	pushq	%rbx
	.cfi_def_cfa_offset 24
	.cfi_offset 3, -24
	subq	$152, %rsp
	.cfi_def_cfa_offset 176
	movq	%fs:40, %rax
	movq	%rax, 136(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbp
	movq	%rbp, %rsi
	call	__isoc99_scanf@PLT
	movl	%eax, %r8d
	movl	$1, %eax
	cmpl	$1, %r8d
	jne	.L1
	movq	%rbp, %rdi
	call	strlen@PLT
	cmpq	$2, %rax
	je	.L14
	leal	-1(%rax), %ebx
	testl	%eax, %eax
	je	.L4
	movslq	%ebx, %rbx
	.p2align 4,,10
	.p2align 3
.L5:
	movzbl	0(%rbp,%rbx), %edi
	movq	stdout(%rip), %rsi
	subq	$1, %rbx
	call	putc@PLT
	cmpl	$-1, %ebx
	jne	.L5
.L4:
	movq	stdout(%rip), %rsi
	movl	$10, %edi
	call	putc@PLT
	xorl	%eax, %eax
.L1:
	movq	136(%rsp), %rdx
	subq	%fs:40, %rdx
	jne	.L15
	addq	$152, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 24
	popq	%rbx
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L14:
	.cfi_restore_state
	movq	%rbp, %rdi
	call	puts@PLT
	xorl	%eax, %eax
	jmp	.L1
.L15:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE35:
	.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 <string.h>

int main(void) {
	char S[128];
	int i;
	int len;
	if (scanf("%127s", S) != 1) return 1;
	len = (int)strlen(S);
	if (len == 2) {
		puts(S);
	} else {
		for (i = len - 1; i >= 0; i--) putchar((unsigned char)S[i]);
		putchar('\n');
	}
	return 0;
}

acc
 bc
 acb
 cb
 adb
 cc
 `cb
 dc
 bc`
 cd

cca
 bc
 bca
 cb
 bda
 cc
 bc`
 dc
 `cb
 cd

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>

int main(void) {
	char S[128];
	int i;
	int len;
	if (scanf("%127s", S) != 1) return 1;
	len = (int)strlen(S);
	if (len == 2) {
		puts(S);
	} else {
		for (i = len - 1; i >= 0; i--) putchar((unsigned char)S[i]);
		putchar('\n');
	}
	return 0;
}
```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%127s"
	.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	$160, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	leaq	-144(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	cmpl	$1, %eax
	je	.L2
	movl	$1, %eax
	jmp	.L8
.L2:
	leaq	-144(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -148(%rbp)
	cmpl	$2, -148(%rbp)
	jne	.L4
	leaq	-144(%rbp), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L5
.L4:
	movl	-148(%rbp), %eax
	subl	$1, %eax
	movl	%eax, -152(%rbp)
	jmp	.L6
.L7:
	movl	-152(%rbp), %eax
	cltq
	movzbl	-144(%rbp,%rax), %eax
	movzbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
	subl	$1, -152(%rbp)
.L6:
	cmpl	$0, -152(%rbp)
	jns	.L7
	movl	$10, %edi
	call	putchar@PLT
.L5:
	movl	$0, %eax
.L8:
	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
.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
	.section	.rodata
.LC0:
	.string	"%127s"
	.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	$160, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	leaq	-144(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	cmpl	$1, %eax
	je	.L2
	movl	$1, %eax
	jmp	.L8
.L2:
	leaq	-144(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -148(%rbp)
	cmpl	$2, -148(%rbp)
	jne	.L4
	leaq	-144(%rbp), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L5
.L4:
	movl	-148(%rbp), %eax
	subl	$1, %eax
	movl	%eax, -152(%rbp)
	jmp	.L6
.L7:
	movl	-152(%rbp), %eax
	cltq
	movzbl	-144(%rbp,%rax), %eax
	movzbl	%al, %eax
	movl	%eax, %edi
	call	putchar@PLT
	subl	$1, -152(%rbp)
.L6:
	cmpl	$0, -152(%rbp)
	jns	.L7
	movl	$10, %edi
	call	putchar@PLT
.L5:
	movl	$0, %eax
.L8:
	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
.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:
