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

```c
#include <stdio.h>
#include <string.h>
int main() {
    int i, j, len, index = 0;
    char *keyence = "keyence", S[100], tmp[100] = {'\0'};
    scanf("%s", S);
    len = strlen(S);
    for (i = 0; i < strlen(keyence); i++) {
        if (S[i] != keyence[i]) break;
    }
    for (j = i; j < strlen(keyence); j++) {
        tmp[index++] = keyence[j];
    }
    index = i;
    for (j = strlen(keyence) - i; j >= 1; j--) {
        if (S[len - j] != keyence[index++]) {
            printf("NO\n");
            return 0;
        }
    }
    printf("YES\n");
    return 0;
}```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"keyence"
.LC2:
	.string	"NO"
.LC3:
	.string	"YES"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB35:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	.LC0(%rip), %rdi
	subq	$112, %rsp
	.cfi_def_cfa_offset 128
	movq	%fs:40, %rax
	movq	%rax, 104(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rsi
	call	__isoc99_scanf@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	cmpb	$107, (%rsp)
	jne	.L8
	cmpb	$101, 1(%rsp)
	jne	.L9
	cmpb	$121, 2(%rsp)
	jne	.L10
	cmpb	$101, 3(%rsp)
	jne	.L11
	cmpb	$110, 4(%rsp)
	jne	.L12
	cmpb	$99, 5(%rsp)
	jne	.L13
	cmpb	$101, 6(%rsp)
	movl	$6, %edi
	jne	.L2
.L3:
	leaq	.LC3(%rip), %rdi
	call	puts@PLT
.L5:
	movq	104(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$112, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L8:
	.cfi_restore_state
	xorl	%edi, %edi
	.p2align 4,,10
	.p2align 3
.L2:
	movl	$7, %ecx
	xorl	%edx, %edx
	subl	%edi, %ecx
	subl	%ecx, %eax
	movl	%ecx, %esi
	leaq	.LC1(%rip), %rcx
	cltq
	addq	%rdi, %rcx
	addq	%rbx, %rax
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L4:
	addq	$1, %rdx
	cmpq	%rsi, %rdx
	je	.L3
.L6:
	movzbl	(%rcx,%rdx), %ebx
	cmpb	%bl, (%rax,%rdx)
	je	.L4
	leaq	.LC2(%rip), %rdi
	call	puts@PLT
	jmp	.L5
.L9:
	movl	$1, %edi
	jmp	.L2
.L10:
	movl	$2, %edi
	jmp	.L2
.L11:
	movl	$3, %edi
	jmp	.L2
.L12:
	movl	$4, %edi
	jmp	.L2
.L13:
	movl	$5, %edi
	jmp	.L2
.L17:
	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:
```

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.
Optimized Assembly Code:

user
```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"keyence"
.LC2:
	.string	"NO"
.LC3:
	.string	"YES"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB35:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	.LC0(%rip), %rdi
	subq	$112, %rsp
	.cfi_def_cfa_offset 128
	movq	%fs:40, %rax
	movq	%rax, 104(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rsi
	call	__isoc99_scanf@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	cmpb	$107, (%rsp)
	jne	.L8
	cmpb	$101, 1(%rsp)
	jne	.L9
	cmpb	$121, 2(%rsp)
	jne	.L10
	cmpb	$101, 3(%rsp)
	jne	.L11
	cmpb	$110, 4(%rsp)
	jne	.L12
	cmpb	$99, 5(%rsp)
	jne	.L13
	cmpb	$101, 6(%rsp)
	movl	$6, %edi
	jne	.L2
.L3:
	leaq	.LC3(%rip), %rdi
	call	puts@PLT
.L5:
	movq	104(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$112, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L8:
	.cfi_restore_state
	xorl	%edi, %edi
	.p2align 4,,10
	.p2align 3
.L2:
	movl	$7, %ecx
	xorl	%edx, %edx
	subl	%edi, %ecx
	subl	%ecx, %eax
	movl	%ecx, %esi
	leaq	.LC1(%rip), %rcx
	cltq
	addq	%rdi, %rcx
	addq	%rbx, %rax
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L4:
	addq	$1, %rdx
	cmpq	%rsi, %rdx
	je	.L3
.L6:
	movzbl	(%rcx,%rdx), %ebx
	cmpb	%bl, (%rax,%rdx)
	je	.L4
	leaq	.LC2(%rip), %rdi
	call	puts@PLT
	jmp	.L5
.L9:
	movl	$1, %edi
	jmp	.L2
.L10:
	movl	$2, %edi
	jmp	.L2
.L11:
	movl	$3, %edi
	jmp	.L2
.L12:
	movl	$4, %edi
	jmp	.L2
.L13:
	movl	$5, %edi
	jmp	.L2
.L17:
	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
```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"keyence"
.LC2:
	.string	"NO"
.LC3:
	.string	"YES"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB35:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	.LC0(%rip), %rdi
	subq	$112, %rsp
	.cfi_def_cfa_offset 128
	movq	%fs:40, %rax
	movq	%rax, 104(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rsi
	call	__isoc99_scanf@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	cmpb	$107, (%rsp)
	jne	.L8
	cmpb	$101, 1(%rsp)
	jne	.L9
	cmpb	$121, 2(%rsp)
	jne	.L10
	cmpb	$101, 3(%rsp)
	jne	.L11
	cmpb	$110, 4(%rsp)
	jne	.L12
	cmpb	$99, 5(%rsp)
	jne	.L13
	cmpb	$101, 6(%rsp)
	movl	$6, %edi
	jne	.L2
.L3:
	leaq	.LC3(%rip), %rdi
	call	puts@PLT
.L5:
	movq	104(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$112, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L8:
	.cfi_restore_state
	xorl	%edi, %edi
	.p2align 4,,10
	.p2align 3
.L2:
	movl	$7, %ecx
	xorl	%edx, %edx
	subl	%edi, %ecx
	subl	%ecx, %eax
	movl	%ecx, %esi
	leaq	.LC1(%rip), %rcx
	cltq
	addq	%rdi, %rcx
	addq	%rbx, %rax
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L4:
	addq	$1, %rdx
	cmpq	%rsi, %rdx
	je	.L3
.L6:
	movzbl	(%rcx,%rdx), %ebx
	cmpb	%bl, (%rax,%rdx)
	je	.L4
	leaq	.LC2(%rip), %rdi
	call	puts@PLT
	jmp	.L5
.L9:
	movl	$1, %edi
	jmp	.L2
.L10:
	movl	$2, %edi
	jmp	.L2
.L11:
	movl	$3, %edi
	jmp	.L2
.L12:
	movl	$4, %edi
	jmp	.L2
.L13:
	movl	$5, %edi
	jmp	.L2
.L17:
	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:
```
```c
#include <stdio.h>
#include <string.h>
int main() {
    int i, j, len, index = 0;
    char *keyence = "keyence", S[100], tmp[100] = {'\0'};
    scanf("%s", S);
    len = strlen(S);
    for (i = 0; i < strlen(keyence); i++) {
        if (S[i] != keyence[i]) break;
    }
    for (j = i; j < strlen(keyence); j++) {
        tmp[index++] = keyence[j];
    }
    index = i;
    for (j = strlen(keyence) - i; j >= 1; j--) {
        if (S[len - j] != keyence[index++]) {
            printf("NO\n");
            return 0;
        }
    }
    printf("YES\n");
    return 0;
}```
Given the following C code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include <stdio.h>
#include <string.h>
int main() {
    int i, j, len, index = 0;
    char *keyence = "keyence", S[100], tmp[100] = {'\0'};
    scanf("%s", S);
    len = strlen(S);
    for (i = 0; i < strlen(keyence); i++) {
        if (S[i] != keyence[i]) break;
    }
    for (j = i; j < strlen(keyence); j++) {
        tmp[index++] = keyence[j];
    }
    index = i;
    for (j = strlen(keyence) - i; j >= 1; j--) {
        if (S[len - j] != keyence[index++]) {
            printf("NO\n");
            return 0;
        }
    }
    printf("YES\n");
    return 0;
}```

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.
Optimized Assembly Code:

ecneyek
 ashkfyha
 eeyofscienck
 mnyszsbzpf
 ecneyel
 arhkfyha
 eeyofsciencj
 mnyszsb{pf
 ecleyen
 arhkyfha

NO
 NO
 NO
 NO
 NO
 NO
 NO
 NO
 NO
 NO

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

```c
#include <stdio.h>
#include <string.h>
int main() {
    int i, j, len, index = 0;
    char *keyence = "keyence", S[100], tmp[100] = {'\0'};
    scanf("%s", S);
    len = strlen(S);
    for (i = 0; i < strlen(keyence); i++) {
        if (S[i] != keyence[i]) break;
    }
    for (j = i; j < strlen(keyence); j++) {
        tmp[index++] = keyence[j];
    }
    index = i;
    for (j = strlen(keyence) - i; j >= 1; j--) {
        if (S[len - j] != keyence[index++]) {
            printf("NO\n");
            return 0;
        }
    }
    printf("YES\n");
    return 0;
}```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"keyence"
.LC2:
	.string	"NO"
.LC3:
	.string	"YES"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB35:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	.LC0(%rip), %rdi
	subq	$112, %rsp
	.cfi_def_cfa_offset 128
	movq	%fs:40, %rax
	movq	%rax, 104(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rsi
	call	__isoc99_scanf@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	cmpb	$107, (%rsp)
	jne	.L8
	cmpb	$101, 1(%rsp)
	jne	.L9
	cmpb	$121, 2(%rsp)
	jne	.L10
	cmpb	$101, 3(%rsp)
	jne	.L11
	cmpb	$110, 4(%rsp)
	jne	.L12
	cmpb	$99, 5(%rsp)
	jne	.L13
	cmpb	$101, 6(%rsp)
	movl	$6, %edi
	jne	.L2
.L3:
	leaq	.LC3(%rip), %rdi
	call	puts@PLT
.L5:
	movq	104(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$112, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L8:
	.cfi_restore_state
	xorl	%edi, %edi
	.p2align 4,,10
	.p2align 3
.L2:
	movl	$7, %ecx
	xorl	%edx, %edx
	subl	%edi, %ecx
	subl	%ecx, %eax
	movl	%ecx, %esi
	leaq	.LC1(%rip), %rcx
	cltq
	addq	%rdi, %rcx
	addq	%rbx, %rax
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L4:
	addq	$1, %rdx
	cmpq	%rsi, %rdx
	je	.L3
.L6:
	movzbl	(%rcx,%rdx), %ebx
	cmpb	%bl, (%rax,%rdx)
	je	.L4
	leaq	.LC2(%rip), %rdi
	call	puts@PLT
	jmp	.L5
.L9:
	movl	$1, %edi
	jmp	.L2
.L10:
	movl	$2, %edi
	jmp	.L2
.L11:
	movl	$3, %edi
	jmp	.L2
.L12:
	movl	$4, %edi
	jmp	.L2
.L13:
	movl	$5, %edi
	jmp	.L2
.L17:
	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:
```

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.
Optimized Assembly Code:

train
```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"keyence"
.LC2:
	.string	"NO"
.LC3:
	.string	"YES"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB35:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	.LC0(%rip), %rdi
	subq	$112, %rsp
	.cfi_def_cfa_offset 128
	movq	%fs:40, %rax
	movq	%rax, 104(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rsi
	call	__isoc99_scanf@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	cmpb	$107, (%rsp)
	jne	.L8
	cmpb	$101, 1(%rsp)
	jne	.L9
	cmpb	$121, 2(%rsp)
	jne	.L10
	cmpb	$101, 3(%rsp)
	jne	.L11
	cmpb	$110, 4(%rsp)
	jne	.L12
	cmpb	$99, 5(%rsp)
	jne	.L13
	cmpb	$101, 6(%rsp)
	movl	$6, %edi
	jne	.L2
.L3:
	leaq	.LC3(%rip), %rdi
	call	puts@PLT
.L5:
	movq	104(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$112, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L8:
	.cfi_restore_state
	xorl	%edi, %edi
	.p2align 4,,10
	.p2align 3
.L2:
	movl	$7, %ecx
	xorl	%edx, %edx
	subl	%edi, %ecx
	subl	%ecx, %eax
	movl	%ecx, %esi
	leaq	.LC1(%rip), %rcx
	cltq
	addq	%rdi, %rcx
	addq	%rbx, %rax
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L4:
	addq	$1, %rdx
	cmpq	%rsi, %rdx
	je	.L3
.L6:
	movzbl	(%rcx,%rdx), %ebx
	cmpb	%bl, (%rax,%rdx)
	je	.L4
	leaq	.LC2(%rip), %rdi
	call	puts@PLT
	jmp	.L5
.L9:
	movl	$1, %edi
	jmp	.L2
.L10:
	movl	$2, %edi
	jmp	.L2
.L11:
	movl	$3, %edi
	jmp	.L2
.L12:
	movl	$4, %edi
	jmp	.L2
.L13:
	movl	$5, %edi
	jmp	.L2
.L17:
	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:
```