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<stdio.h>
int main()
{
    char S[10];
    int N,K;
    scanf("%d%s%d",&N,S,&K);
    char ch;
    ch = S[K-1];
    int i;
    for(i=0; i<N; i++)
    {
        if(S[i] == ch)
        {
            printf("%c",S[i]);
        }
        else
        {
            printf("*");
        }
    }
    return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d%s%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC0(%rip), %rdi
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	subq	$40, %rsp
	.cfi_def_cfa_offset 80
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	14(%rsp), %rbp
	leaq	8(%rsp), %rcx
	leaq	4(%rsp), %rsi
	movq	%rbp, %rdx
	call	__isoc99_scanf@PLT
	movl	8(%rsp), %eax
	subl	$1, %eax
	cltq
	movzbl	14(%rsp,%rax), %r12d
	movl	4(%rsp), %eax
	testl	%eax, %eax
	jle	.L2
	xorl	%ebx, %ebx
	movsbl	%r12b, %r13d
	.p2align 4,,10
	.p2align 3
.L5:
	cmpb	%r12b, 0(%rbp,%rbx)
	je	.L9
	movl	$42, %edi
	addq	$1, %rbx
	call	putchar@PLT
	cmpl	%ebx, 4(%rsp)
	jg	.L5
.L2:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L10
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L9:
	.cfi_restore_state
	movl	%r13d, %edi
	addq	$1, %rbx
	call	putchar@PLT
	cmpl	%ebx, 4(%rsp)
	jg	.L5
	jmp	.L2
.L10:
	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%s%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC0(%rip), %rdi
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	subq	$40, %rsp
	.cfi_def_cfa_offset 80
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	14(%rsp), %rbp
	leaq	8(%rsp), %rcx
	leaq	4(%rsp), %rsi
	movq	%rbp, %rdx
	call	__isoc99_scanf@PLT
	movl	8(%rsp), %eax
	subl	$1, %eax
	cltq
	movzbl	14(%rsp,%rax), %r12d
	movl	4(%rsp), %eax
	testl	%eax, %eax
	jle	.L2
	xorl	%ebx, %ebx
	movsbl	%r12b, %r13d
	.p2align 4,,10
	.p2align 3
.L5:
	cmpb	%r12b, 0(%rbp,%rbx)
	je	.L9
	movl	$42, %edi
	addq	$1, %rbx
	call	putchar@PLT
	cmpl	%ebx, 4(%rsp)
	jg	.L5
.L2:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L10
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L9:
	.cfi_restore_state
	movl	%r13d, %edi
	addq	$1, %rbx
	call	putchar@PLT
	cmpl	%ebx, 4(%rsp)
	jg	.L5
	jmp	.L2
.L10:
	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%s%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC0(%rip), %rdi
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	subq	$40, %rsp
	.cfi_def_cfa_offset 80
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	14(%rsp), %rbp
	leaq	8(%rsp), %rcx
	leaq	4(%rsp), %rsi
	movq	%rbp, %rdx
	call	__isoc99_scanf@PLT
	movl	8(%rsp), %eax
	subl	$1, %eax
	cltq
	movzbl	14(%rsp,%rax), %r12d
	movl	4(%rsp), %eax
	testl	%eax, %eax
	jle	.L2
	xorl	%ebx, %ebx
	movsbl	%r12b, %r13d
	.p2align 4,,10
	.p2align 3
.L5:
	cmpb	%r12b, 0(%rbp,%rbx)
	je	.L9
	movl	$42, %edi
	addq	$1, %rbx
	call	putchar@PLT
	cmpl	%ebx, 4(%rsp)
	jg	.L5
.L2:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L10
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L9:
	.cfi_restore_state
	movl	%r13d, %edi
	addq	$1, %rbx
	call	putchar@PLT
	cmpl	%ebx, 4(%rsp)
	jg	.L5
	jmp	.L2
.L10:
	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>
#include<stdio.h>
int main()
{
    char S[10];
    int N,K;
    scanf("%d%s%d",&N,S,&K);
    char ch;
    ch = S[K-1];
    int i;
    for(i=0; i<N; i++)
    {
        if(S[i] == ch)
        {
            printf("%c",S[i]);
        }
        else
        {
            printf("*");
        }
    }
    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<stdio.h>
int main()
{
    char S[10];
    int N,K;
    scanf("%d%s%d",&N,S,&K);
    char ch;
    ch = S[K-1];
    int i;
    for(i=0; i<N; i++)
    {
        if(S[i] == ch)
        {
            printf("%c",S[i]);
        }
        else
        {
            printf("*");
        }
    }
    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>
#include<stdio.h>
int main()
{
    char S[10];
    int N,K;
    scanf("%d%s%d",&N,S,&K);
    char ch;
    ch = S[K-1];
    int i;
    for(i=0; i<N; i++)
    {
        if(S[i] == ch)
        {
            printf("%c",S[i]);
        }
        else
        {
            printf("*");
        }
    }
    return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d%s%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC0(%rip), %rdi
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	subq	$40, %rsp
	.cfi_def_cfa_offset 80
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	14(%rsp), %rbp
	leaq	8(%rsp), %rcx
	leaq	4(%rsp), %rsi
	movq	%rbp, %rdx
	call	__isoc99_scanf@PLT
	movl	8(%rsp), %eax
	subl	$1, %eax
	cltq
	movzbl	14(%rsp,%rax), %r12d
	movl	4(%rsp), %eax
	testl	%eax, %eax
	jle	.L2
	xorl	%ebx, %ebx
	movsbl	%r12b, %r13d
	.p2align 4,,10
	.p2align 3
.L5:
	cmpb	%r12b, 0(%rbp,%rbx)
	je	.L9
	movl	$42, %edi
	addq	$1, %rbx
	call	putchar@PLT
	cmpl	%ebx, 4(%rsp)
	jg	.L5
.L2:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L10
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L9:
	.cfi_restore_state
	movl	%r13d, %edi
	addq	$1, %rbx
	call	putchar@PLT
	cmpl	%ebx, 4(%rsp)
	jg	.L5
	jmp	.L2
.L10:
	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%s%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC0(%rip), %rdi
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	subq	$40, %rsp
	.cfi_def_cfa_offset 80
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	14(%rsp), %rbp
	leaq	8(%rsp), %rcx
	leaq	4(%rsp), %rsi
	movq	%rbp, %rdx
	call	__isoc99_scanf@PLT
	movl	8(%rsp), %eax
	subl	$1, %eax
	cltq
	movzbl	14(%rsp,%rax), %r12d
	movl	4(%rsp), %eax
	testl	%eax, %eax
	jle	.L2
	xorl	%ebx, %ebx
	movsbl	%r12b, %r13d
	.p2align 4,,10
	.p2align 3
.L5:
	cmpb	%r12b, 0(%rbp,%rbx)
	je	.L9
	movl	$42, %edi
	addq	$1, %rbx
	call	putchar@PLT
	cmpl	%ebx, 4(%rsp)
	jg	.L5
.L2:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L10
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L9:
	.cfi_restore_state
	movl	%r13d, %edi
	addq	$1, %rbx
	call	putchar@PLT
	cmpl	%ebx, 4(%rsp)
	jg	.L5
	jmp	.L2
.L10:
	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:
```