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>

int main()
{
	int n, k;
	char s[128];

	scanf("%d", &n);
	scanf("%s", s);
	scanf("%d", &k);

	for(int i = 0; i < n; i++){
		if(s[i] != s[k - 1]){
			s[i] = '*';
		}
	}

	printf("%s\n", s);

	return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d"
.LC1:
	.string	"%s"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r12
	.cfi_def_cfa_offset 16
	.cfi_offset 12, -16
	leaq	.LC0(%rip), %r12
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	movq	%r12, %rdi
	subq	$168, %rsp
	.cfi_def_cfa_offset 192
	movq	%fs:40, %rax
	movq	%rax, 152(%rsp)
	xorl	%eax, %eax
	leaq	8(%rsp), %rsi
	leaq	16(%rsp), %rbp
	call	__isoc99_scanf@PLT
	movq	%rbp, %rsi
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	leaq	12(%rsp), %rsi
	movq	%r12, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movl	8(%rsp), %ecx
	testl	%ecx, %ecx
	jle	.L2
	movl	12(%rsp), %eax
	subl	$1, %ecx
	leaq	17(%rsp,%rcx), %rcx
	leal	-1(%rax), %edx
	movq	%rbp, %rax
	movslq	%edx, %rdx
	.p2align 4,,10
	.p2align 3
.L4:
	movzbl	16(%rsp,%rdx), %edi
	cmpb	%dil, (%rax)
	je	.L3
	movb	$42, (%rax)
.L3:
	addq	$1, %rax
	cmpq	%rcx, %rax
	jne	.L4
.L2:
	movq	%rbp, %rdi
	call	puts@PLT
	movq	152(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L9
	addq	$168, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 24
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 16
	popq	%r12
	.cfi_def_cfa_offset 8
	ret
.L9:
	.cfi_restore_state
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.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	"%d"
.LC1:
	.string	"%s"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r12
	.cfi_def_cfa_offset 16
	.cfi_offset 12, -16
	leaq	.LC0(%rip), %r12
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	movq	%r12, %rdi
	subq	$168, %rsp
	.cfi_def_cfa_offset 192
	movq	%fs:40, %rax
	movq	%rax, 152(%rsp)
	xorl	%eax, %eax
	leaq	8(%rsp), %rsi
	leaq	16(%rsp), %rbp
	call	__isoc99_scanf@PLT
	movq	%rbp, %rsi
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	leaq	12(%rsp), %rsi
	movq	%r12, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movl	8(%rsp), %ecx
	testl	%ecx, %ecx
	jle	.L2
	movl	12(%rsp), %eax
	subl	$1, %ecx
	leaq	17(%rsp,%rcx), %rcx
	leal	-1(%rax), %edx
	movq	%rbp, %rax
	movslq	%edx, %rdx
	.p2align 4,,10
	.p2align 3
.L4:
	movzbl	16(%rsp,%rdx), %edi
	cmpb	%dil, (%rax)
	je	.L3
	movb	$42, (%rax)
.L3:
	addq	$1, %rax
	cmpq	%rcx, %rax
	jne	.L4
.L2:
	movq	%rbp, %rdi
	call	puts@PLT
	movq	152(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L9
	addq	$168, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 24
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 16
	popq	%r12
	.cfi_def_cfa_offset 8
	ret
.L9:
	.cfi_restore_state
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.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	"%d"
.LC1:
	.string	"%s"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r12
	.cfi_def_cfa_offset 16
	.cfi_offset 12, -16
	leaq	.LC0(%rip), %r12
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	movq	%r12, %rdi
	subq	$168, %rsp
	.cfi_def_cfa_offset 192
	movq	%fs:40, %rax
	movq	%rax, 152(%rsp)
	xorl	%eax, %eax
	leaq	8(%rsp), %rsi
	leaq	16(%rsp), %rbp
	call	__isoc99_scanf@PLT
	movq	%rbp, %rsi
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	leaq	12(%rsp), %rsi
	movq	%r12, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movl	8(%rsp), %ecx
	testl	%ecx, %ecx
	jle	.L2
	movl	12(%rsp), %eax
	subl	$1, %ecx
	leaq	17(%rsp,%rcx), %rcx
	leal	-1(%rax), %edx
	movq	%rbp, %rax
	movslq	%edx, %rdx
	.p2align 4,,10
	.p2align 3
.L4:
	movzbl	16(%rsp,%rdx), %edi
	cmpb	%dil, (%rax)
	je	.L3
	movb	$42, (%rax)
.L3:
	addq	$1, %rax
	cmpq	%rcx, %rax
	jne	.L4
.L2:
	movq	%rbp, %rdi
	call	puts@PLT
	movq	152(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L9
	addq	$168, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 24
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 16
	popq	%r12
	.cfi_def_cfa_offset 8
	ret
.L9:
	.cfi_restore_state
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.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>

int main()
{
	int n, k;
	char s[128];

	scanf("%d", &n);
	scanf("%s", s);
	scanf("%d", &k);

	for(int i = 0; i < n; i++){
		if(s[i] != s[k - 1]){
			s[i] = '*';
		}
	}

	printf("%s\n", s);

	return 0;
}
```
Given the following C code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include<stdio.h>

int main()
{
	int n, k;
	char s[128];

	scanf("%d", &n);
	scanf("%s", s);
	scanf("%d", &k);

	for(int i = 0; i < n; i++){
		if(s[i] != s[k - 1]){
			s[i] = '*';
		}
	}

	printf("%s\n", s);

	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:

9
education
4
 5
orrer
2
 9
edubation
4
 9
edubation
6
 9
edubation
8
 9
edubatinn
8
 9
nnitabude
8
 9
edubatinn
1
 9
edubatinn
2
 6
eleven
4

***c*****
 *rr*r
 ***b*****
 *****t***
 *******o*
 *******nn
 *******d*
 e********
 *d*******
 ***v**

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>

int main()
{
	int n, k;
	char s[128];

	scanf("%d", &n);
	scanf("%s", s);
	scanf("%d", &k);

	for(int i = 0; i < n; i++){
		if(s[i] != s[k - 1]){
			s[i] = '*';
		}
	}

	printf("%s\n", s);

	return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d"
.LC1:
	.string	"%s"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r12
	.cfi_def_cfa_offset 16
	.cfi_offset 12, -16
	leaq	.LC0(%rip), %r12
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	movq	%r12, %rdi
	subq	$168, %rsp
	.cfi_def_cfa_offset 192
	movq	%fs:40, %rax
	movq	%rax, 152(%rsp)
	xorl	%eax, %eax
	leaq	8(%rsp), %rsi
	leaq	16(%rsp), %rbp
	call	__isoc99_scanf@PLT
	movq	%rbp, %rsi
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	leaq	12(%rsp), %rsi
	movq	%r12, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movl	8(%rsp), %ecx
	testl	%ecx, %ecx
	jle	.L2
	movl	12(%rsp), %eax
	subl	$1, %ecx
	leaq	17(%rsp,%rcx), %rcx
	leal	-1(%rax), %edx
	movq	%rbp, %rax
	movslq	%edx, %rdx
	.p2align 4,,10
	.p2align 3
.L4:
	movzbl	16(%rsp,%rdx), %edi
	cmpb	%dil, (%rax)
	je	.L3
	movb	$42, (%rax)
.L3:
	addq	$1, %rax
	cmpq	%rcx, %rax
	jne	.L4
.L2:
	movq	%rbp, %rdi
	call	puts@PLT
	movq	152(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L9
	addq	$168, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 24
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 16
	popq	%r12
	.cfi_def_cfa_offset 8
	ret
.L9:
	.cfi_restore_state
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.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	"%d"
.LC1:
	.string	"%s"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r12
	.cfi_def_cfa_offset 16
	.cfi_offset 12, -16
	leaq	.LC0(%rip), %r12
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	movq	%r12, %rdi
	subq	$168, %rsp
	.cfi_def_cfa_offset 192
	movq	%fs:40, %rax
	movq	%rax, 152(%rsp)
	xorl	%eax, %eax
	leaq	8(%rsp), %rsi
	leaq	16(%rsp), %rbp
	call	__isoc99_scanf@PLT
	movq	%rbp, %rsi
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	leaq	12(%rsp), %rsi
	movq	%r12, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movl	8(%rsp), %ecx
	testl	%ecx, %ecx
	jle	.L2
	movl	12(%rsp), %eax
	subl	$1, %ecx
	leaq	17(%rsp,%rcx), %rcx
	leal	-1(%rax), %edx
	movq	%rbp, %rax
	movslq	%edx, %rdx
	.p2align 4,,10
	.p2align 3
.L4:
	movzbl	16(%rsp,%rdx), %edi
	cmpb	%dil, (%rax)
	je	.L3
	movb	$42, (%rax)
.L3:
	addq	$1, %rax
	cmpq	%rcx, %rax
	jne	.L4
.L2:
	movq	%rbp, %rdi
	call	puts@PLT
	movq	152(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L9
	addq	$168, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 24
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 16
	popq	%r12
	.cfi_def_cfa_offset 8
	ret
.L9:
	.cfi_restore_state
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.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:
```