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(){
  int len,k,n;
  char s[11],c;
  scanf("%d\n%s\n%d",&n,s,&k);
  c=s[k-1];
  len=strlen(s);
  for (int i=0;i<len;i++){
    if (s[i]!=c) s[i]='*';
  }
  printf("%s\n",s);
  return 0;
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d\n%s\n%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	$48, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	leaq	-36(%rbp), %rcx
	leaq	-19(%rbp), %rdx
	leaq	-32(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	-36(%rbp), %eax
	subl	$1, %eax
	cltq
	movzbl	-19(%rbp,%rax), %eax
	movb	%al, -37(%rbp)
	leaq	-19(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -24(%rbp)
	movl	$0, -28(%rbp)
	jmp	.L2
.L4:
	movl	-28(%rbp), %eax
	cltq
	movzbl	-19(%rbp,%rax), %eax
	cmpb	%al, -37(%rbp)
	je	.L3
	movl	-28(%rbp), %eax
	cltq
	movb	$42, -19(%rbp,%rax)
.L3:
	addl	$1, -28(%rbp)
.L2:
	movl	-28(%rbp), %eax
	cmpl	-24(%rbp), %eax
	jl	.L4
	leaq	-19(%rbp), %rax
	movq	%rax, %rdi
	call	puts@PLT
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L6
	call	__stack_chk_fail@PLT
.L6:
	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\n%s\n%d"
	.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	$40, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	13(%rsp), %rbp
	leaq	4(%rsp), %rcx
	leaq	8(%rsp), %rsi
	movq	%rbp, %rdx
	call	__isoc99_scanf@PLT
	movl	4(%rsp), %eax
	movq	%rbp, %rdi
	subl	$1, %eax
	cltq
	movzbl	13(%rsp,%rax), %ebx
	call	strlen@PLT
	testq	%rax, %rax
	je	.L2
	cmpb	13(%rsp), %bl
	je	.L3
	movb	$42, 13(%rsp)
.L3:
	cmpl	$1, %eax
	je	.L2
	cmpb	14(%rsp), %bl
	je	.L4
	movb	$42, 14(%rsp)
.L4:
	cmpl	$2, %eax
	je	.L2
	cmpb	15(%rsp), %bl
	je	.L5
	movb	$42, 15(%rsp)
.L5:
	cmpl	$3, %eax
	je	.L2
	cmpb	16(%rsp), %bl
	je	.L6
	movb	$42, 16(%rsp)
.L6:
	cmpl	$4, %eax
	je	.L2
	cmpb	17(%rsp), %bl
	je	.L7
	movb	$42, 17(%rsp)
.L7:
	cmpl	$5, %eax
	je	.L2
	cmpb	18(%rsp), %bl
	je	.L8
	movb	$42, 18(%rsp)
.L8:
	cmpl	$6, %eax
	je	.L2
	cmpb	19(%rsp), %bl
	je	.L9
	movb	$42, 19(%rsp)
.L9:
	cmpl	$7, %eax
	je	.L2
	cmpb	20(%rsp), %bl
	je	.L10
	movb	$42, 20(%rsp)
.L10:
	cmpl	$8, %eax
	je	.L2
	cmpb	21(%rsp), %bl
	je	.L11
	movb	$42, 21(%rsp)
.L11:
	cmpl	$10, %eax
	jne	.L2
	cmpb	%bl, 22(%rsp)
	je	.L2
	movb	$42, 22(%rsp)
.L2:
	movq	%rbp, %rdi
	call	puts@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L19
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 24
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L19:
	.cfi_restore_state
	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	"%d\n%s\n%d"
	.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	$40, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	13(%rsp), %rbp
	leaq	4(%rsp), %rcx
	leaq	8(%rsp), %rsi
	movq	%rbp, %rdx
	call	__isoc99_scanf@PLT
	movl	4(%rsp), %eax
	movq	%rbp, %rdi
	subl	$1, %eax
	cltq
	movzbl	13(%rsp,%rax), %ebx
	call	strlen@PLT
	testq	%rax, %rax
	je	.L2
	cmpb	13(%rsp), %bl
	je	.L3
	movb	$42, 13(%rsp)
.L3:
	cmpl	$1, %eax
	je	.L2
	cmpb	14(%rsp), %bl
	je	.L4
	movb	$42, 14(%rsp)
.L4:
	cmpl	$2, %eax
	je	.L2
	cmpb	15(%rsp), %bl
	je	.L5
	movb	$42, 15(%rsp)
.L5:
	cmpl	$3, %eax
	je	.L2
	cmpb	16(%rsp), %bl
	je	.L6
	movb	$42, 16(%rsp)
.L6:
	cmpl	$4, %eax
	je	.L2
	cmpb	17(%rsp), %bl
	je	.L7
	movb	$42, 17(%rsp)
.L7:
	cmpl	$5, %eax
	je	.L2
	cmpb	18(%rsp), %bl
	je	.L8
	movb	$42, 18(%rsp)
.L8:
	cmpl	$6, %eax
	je	.L2
	cmpb	19(%rsp), %bl
	je	.L9
	movb	$42, 19(%rsp)
.L9:
	cmpl	$7, %eax
	je	.L2
	cmpb	20(%rsp), %bl
	je	.L10
	movb	$42, 20(%rsp)
.L10:
	cmpl	$8, %eax
	je	.L2
	cmpb	21(%rsp), %bl
	je	.L11
	movb	$42, 21(%rsp)
.L11:
	cmpl	$10, %eax
	jne	.L2
	cmpb	%bl, 22(%rsp)
	je	.L2
	movb	$42, 22(%rsp)
.L2:
	movq	%rbp, %rdi
	call	puts@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L19
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 24
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 16
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L19:
	.cfi_restore_state
	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(){
  int len,k,n;
  char s[11],c;
  scanf("%d\n%s\n%d",&n,s,&k);
  c=s[k-1];
  len=strlen(s);
  for (int i=0;i<len;i++){
    if (s[i]!=c) s[i]='*';
  }
  printf("%s\n",s);
  return 0;
}
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 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(){
  int len,k,n;
  char s[11],c;
  scanf("%d\n%s\n%d",&n,s,&k);
  c=s[k-1];
  len=strlen(s);
  for (int i=0;i<len;i++){
    if (s[i]!=c) s[i]='*';
  }
  printf("%s\n",s);
  return 0;
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d\n%s\n%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	$48, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	leaq	-36(%rbp), %rcx
	leaq	-19(%rbp), %rdx
	leaq	-32(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	-36(%rbp), %eax
	subl	$1, %eax
	cltq
	movzbl	-19(%rbp,%rax), %eax
	movb	%al, -37(%rbp)
	leaq	-19(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -24(%rbp)
	movl	$0, -28(%rbp)
	jmp	.L2
.L4:
	movl	-28(%rbp), %eax
	cltq
	movzbl	-19(%rbp,%rax), %eax
	cmpb	%al, -37(%rbp)
	je	.L3
	movl	-28(%rbp), %eax
	cltq
	movb	$42, -19(%rbp,%rax)
.L3:
	addl	$1, -28(%rbp)
.L2:
	movl	-28(%rbp), %eax
	cmpl	-24(%rbp), %eax
	jl	.L4
	leaq	-19(%rbp), %rax
	movq	%rax, %rdi
	call	puts@PLT
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L6
	call	__stack_chk_fail@PLT
.L6:
	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.
val
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d\n%s\n%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	$48, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	leaq	-36(%rbp), %rcx
	leaq	-19(%rbp), %rdx
	leaq	-32(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	-36(%rbp), %eax
	subl	$1, %eax
	cltq
	movzbl	-19(%rbp,%rax), %eax
	movb	%al, -37(%rbp)
	leaq	-19(%rbp), %rax
	movq	%rax, %rdi
	call	strlen@PLT
	movl	%eax, -24(%rbp)
	movl	$0, -28(%rbp)
	jmp	.L2
.L4:
	movl	-28(%rbp), %eax
	cltq
	movzbl	-19(%rbp,%rax), %eax
	cmpb	%al, -37(%rbp)
	je	.L3
	movl	-28(%rbp), %eax
	cltq
	movb	$42, -19(%rbp,%rax)
.L3:
	addl	$1, -28(%rbp)
.L2:
	movl	-28(%rbp), %eax
	cmpl	-24(%rbp), %eax
	jl	.L4
	leaq	-19(%rbp), %rax
	movq	%rax, %rdi
	call	puts@PLT
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L6
	call	__stack_chk_fail@PLT
.L6:
	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:
