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 <stdlib.h> 
#include <time.h>
int main(){
    int i=0,j;
    char S[20];
    scanf("%s", S);
    while(S[i]){
        i++;
    }
    srand(time(NULL));
    if(i==3){
        j = 0;
    }else{
    j = rand()%(i-3);
    }
    printf("%c%c%c", S[j],S[j+1],S[j+2]);
    return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"%c%c%c"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB39:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	.LC0(%rip), %rdi
	subq	$32, %rsp
	.cfi_def_cfa_offset 48
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	call	__isoc99_scanf@PLT
	cmpb	$0, (%rsp)
	je	.L2
	movl	$1, %eax
	leaq	-1(%rsp), %rdx
	.p2align 4,,10
	.p2align 3
.L3:
	movl	%eax, %ebx
	addq	$1, %rax
	cmpb	$0, (%rdx,%rax)
	jne	.L3
	xorl	%edi, %edi
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
	xorl	%edx, %edx
	cmpl	$3, %ebx
	jne	.L5
.L6:
	leal	2(%rdx), %eax
	leal	1(%rdx), %ecx
	movslq	%edx, %rdx
	movl	$1, %edi
	cltq
	movslq	%ecx, %rcx
	movsbl	(%rsp,%rdx), %edx
	leaq	.LC1(%rip), %rsi
	movsbl	(%rsp,%rax), %r8d
	movsbl	(%rsp,%rcx), %ecx
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L14
	addq	$32, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	xorl	%edi, %edi
	xorl	%ebx, %ebx
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
.L5:
	call	rand@PLT
	subl	$3, %ebx
	cltd
	idivl	%ebx
	jmp	.L6
.L14:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE39:
	.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	"%c%c%c"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB39:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	.LC0(%rip), %rdi
	subq	$32, %rsp
	.cfi_def_cfa_offset 48
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	call	__isoc99_scanf@PLT
	cmpb	$0, (%rsp)
	je	.L2
	movl	$1, %eax
	leaq	-1(%rsp), %rdx
	.p2align 4,,10
	.p2align 3
.L3:
	movl	%eax, %ebx
	addq	$1, %rax
	cmpb	$0, (%rdx,%rax)
	jne	.L3
	xorl	%edi, %edi
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
	xorl	%edx, %edx
	cmpl	$3, %ebx
	jne	.L5
.L6:
	leal	2(%rdx), %eax
	leal	1(%rdx), %ecx
	movslq	%edx, %rdx
	movl	$1, %edi
	cltq
	movslq	%ecx, %rcx
	movsbl	(%rsp,%rdx), %edx
	leaq	.LC1(%rip), %rsi
	movsbl	(%rsp,%rax), %r8d
	movsbl	(%rsp,%rcx), %ecx
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L14
	addq	$32, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	xorl	%edi, %edi
	xorl	%ebx, %ebx
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
.L5:
	call	rand@PLT
	subl	$3, %ebx
	cltd
	idivl	%ebx
	jmp	.L6
.L14:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE39:
	.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	"%c%c%c"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB39:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	.LC0(%rip), %rdi
	subq	$32, %rsp
	.cfi_def_cfa_offset 48
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	call	__isoc99_scanf@PLT
	cmpb	$0, (%rsp)
	je	.L2
	movl	$1, %eax
	leaq	-1(%rsp), %rdx
	.p2align 4,,10
	.p2align 3
.L3:
	movl	%eax, %ebx
	addq	$1, %rax
	cmpb	$0, (%rdx,%rax)
	jne	.L3
	xorl	%edi, %edi
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
	xorl	%edx, %edx
	cmpl	$3, %ebx
	jne	.L5
.L6:
	leal	2(%rdx), %eax
	leal	1(%rdx), %ecx
	movslq	%edx, %rdx
	movl	$1, %edi
	cltq
	movslq	%ecx, %rcx
	movsbl	(%rsp,%rdx), %edx
	leaq	.LC1(%rip), %rsi
	movsbl	(%rsp,%rax), %r8d
	movsbl	(%rsp,%rcx), %ecx
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L14
	addq	$32, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	xorl	%edi, %edi
	xorl	%ebx, %ebx
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
.L5:
	call	rand@PLT
	subl	$3, %ebx
	cltd
	idivl	%ebx
	jmp	.L6
.L14:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE39:
	.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 <stdlib.h> 
#include <time.h>
int main(){
    int i=0,j;
    char S[20];
    scanf("%s", S);
    while(S[i]){
        i++;
    }
    srand(time(NULL));
    if(i==3){
        j = 0;
    }else{
    j = rand()%(i-3);
    }
    printf("%c%c%c", S[j],S[j+1],S[j+2]);
    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 <stdlib.h> 
#include <time.h>
int main(){
    int i=0,j;
    char S[20];
    scanf("%s", S);
    while(S[i]){
        i++;
    }
    srand(time(NULL));
    if(i==3){
        j = 0;
    }else{
    j = rand()%(i-3);
    }
    printf("%c%c%c", S[j],S[j+1],S[j+2]);
    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:

maohiro
 sakahashi
 orihoam
 sbkahashi
 ihsahakbs
 hhsaiakbr
 anphiro
 rbkaiashh
 onphira
 rkbaiashh

ohi sak hoa sbk hak aia hir ash phi ias
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 <stdlib.h> 
#include <time.h>
int main(){
    int i=0,j;
    char S[20];
    scanf("%s", S);
    while(S[i]){
        i++;
    }
    srand(time(NULL));
    if(i==3){
        j = 0;
    }else{
    j = rand()%(i-3);
    }
    printf("%c%c%c", S[j],S[j+1],S[j+2]);
    return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%s"
.LC1:
	.string	"%c%c%c"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB39:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	.LC0(%rip), %rdi
	subq	$32, %rsp
	.cfi_def_cfa_offset 48
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	call	__isoc99_scanf@PLT
	cmpb	$0, (%rsp)
	je	.L2
	movl	$1, %eax
	leaq	-1(%rsp), %rdx
	.p2align 4,,10
	.p2align 3
.L3:
	movl	%eax, %ebx
	addq	$1, %rax
	cmpb	$0, (%rdx,%rax)
	jne	.L3
	xorl	%edi, %edi
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
	xorl	%edx, %edx
	cmpl	$3, %ebx
	jne	.L5
.L6:
	leal	2(%rdx), %eax
	leal	1(%rdx), %ecx
	movslq	%edx, %rdx
	movl	$1, %edi
	cltq
	movslq	%ecx, %rcx
	movsbl	(%rsp,%rdx), %edx
	leaq	.LC1(%rip), %rsi
	movsbl	(%rsp,%rax), %r8d
	movsbl	(%rsp,%rcx), %ecx
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L14
	addq	$32, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	xorl	%edi, %edi
	xorl	%ebx, %ebx
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
.L5:
	call	rand@PLT
	subl	$3, %ebx
	cltd
	idivl	%ebx
	jmp	.L6
.L14:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE39:
	.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	"%c%c%c"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB39:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	.LC0(%rip), %rdi
	subq	$32, %rsp
	.cfi_def_cfa_offset 48
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	call	__isoc99_scanf@PLT
	cmpb	$0, (%rsp)
	je	.L2
	movl	$1, %eax
	leaq	-1(%rsp), %rdx
	.p2align 4,,10
	.p2align 3
.L3:
	movl	%eax, %ebx
	addq	$1, %rax
	cmpb	$0, (%rdx,%rax)
	jne	.L3
	xorl	%edi, %edi
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
	xorl	%edx, %edx
	cmpl	$3, %ebx
	jne	.L5
.L6:
	leal	2(%rdx), %eax
	leal	1(%rdx), %ecx
	movslq	%edx, %rdx
	movl	$1, %edi
	cltq
	movslq	%ecx, %rcx
	movsbl	(%rsp,%rdx), %edx
	leaq	.LC1(%rip), %rsi
	movsbl	(%rsp,%rax), %r8d
	movsbl	(%rsp,%rcx), %ecx
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L14
	addq	$32, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	xorl	%edi, %edi
	xorl	%ebx, %ebx
	call	time@PLT
	movl	%eax, %edi
	call	srand@PLT
.L5:
	call	rand@PLT
	subl	$3, %ebx
	cltd
	idivl	%ebx
	jmp	.L6
.L14:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE39:
	.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:
```