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(void){
    
    int i,n,a[100000],b;
    
    scanf("%d",&n);
    for(i=0;i<n;i++){
        scanf("%d",&a[i]);
    }
    
    i=0; b=a[0];
    while(i<n){
        i++;
        if(b==2){
            printf("%d\n",i);
            return 0;
        }
        else{
            b=a[b-1];
        }
    }
    printf("-1\n");
    return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d"
.LC1:
	.string	"-1"
.LC2:
	.string	"%d\n"
	.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
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	pushq	%rbx
	.cfi_def_cfa_offset 32
	.cfi_offset 3, -32
	leaq	-397312(%rsp), %r11
	.cfi_def_cfa 11, 397344
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$2720, %rsp
	.cfi_def_cfa_offset 400064
	leaq	.LC0(%rip), %r12
	xorl	%ebx, %ebx
	movq	%r12, %rdi
	movq	%fs:40, %rax
	movq	%rax, 400024(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rsi
	leaq	16(%rsp), %rbp
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %eax
	testl	%eax, %eax
	jle	.L5
	.p2align 4,,10
	.p2align 3
.L4:
	movq	%rbp, %rsi
	movq	%r12, %rdi
	xorl	%eax, %eax
	addl	$1, %ebx
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %ecx
	addq	$4, %rbp
	cmpl	%ebx, %ecx
	jg	.L4
	movl	16(%rsp), %eax
	testl	%ecx, %ecx
	jle	.L5
	movl	$1, %edx
	cmpl	$2, %eax
	jne	.L7
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L8:
	addl	$1, %edx
	cmpl	$2, %eax
	je	.L6
.L7:
	subl	$1, %eax
	cltq
	movl	16(%rsp,%rax,4), %eax
	cmpl	%edx, %ecx
	jne	.L8
.L5:
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
.L3:
	movq	400024(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$400032, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 32
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 24
	popq	%rbp
	.cfi_def_cfa_offset 16
	popq	%r12
	.cfi_def_cfa_offset 8
	ret
.L6:
	.cfi_restore_state
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L3
.L17:
	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	"-1"
.LC2:
	.string	"%d\n"
	.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
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	pushq	%rbx
	.cfi_def_cfa_offset 32
	.cfi_offset 3, -32
	leaq	-397312(%rsp), %r11
	.cfi_def_cfa 11, 397344
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$2720, %rsp
	.cfi_def_cfa_offset 400064
	leaq	.LC0(%rip), %r12
	xorl	%ebx, %ebx
	movq	%r12, %rdi
	movq	%fs:40, %rax
	movq	%rax, 400024(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rsi
	leaq	16(%rsp), %rbp
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %eax
	testl	%eax, %eax
	jle	.L5
	.p2align 4,,10
	.p2align 3
.L4:
	movq	%rbp, %rsi
	movq	%r12, %rdi
	xorl	%eax, %eax
	addl	$1, %ebx
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %ecx
	addq	$4, %rbp
	cmpl	%ebx, %ecx
	jg	.L4
	movl	16(%rsp), %eax
	testl	%ecx, %ecx
	jle	.L5
	movl	$1, %edx
	cmpl	$2, %eax
	jne	.L7
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L8:
	addl	$1, %edx
	cmpl	$2, %eax
	je	.L6
.L7:
	subl	$1, %eax
	cltq
	movl	16(%rsp,%rax,4), %eax
	cmpl	%edx, %ecx
	jne	.L8
.L5:
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
.L3:
	movq	400024(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$400032, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 32
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 24
	popq	%rbp
	.cfi_def_cfa_offset 16
	popq	%r12
	.cfi_def_cfa_offset 8
	ret
.L6:
	.cfi_restore_state
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L3
.L17:
	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	"-1"
.LC2:
	.string	"%d\n"
	.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
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	pushq	%rbx
	.cfi_def_cfa_offset 32
	.cfi_offset 3, -32
	leaq	-397312(%rsp), %r11
	.cfi_def_cfa 11, 397344
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$2720, %rsp
	.cfi_def_cfa_offset 400064
	leaq	.LC0(%rip), %r12
	xorl	%ebx, %ebx
	movq	%r12, %rdi
	movq	%fs:40, %rax
	movq	%rax, 400024(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rsi
	leaq	16(%rsp), %rbp
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %eax
	testl	%eax, %eax
	jle	.L5
	.p2align 4,,10
	.p2align 3
.L4:
	movq	%rbp, %rsi
	movq	%r12, %rdi
	xorl	%eax, %eax
	addl	$1, %ebx
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %ecx
	addq	$4, %rbp
	cmpl	%ebx, %ecx
	jg	.L4
	movl	16(%rsp), %eax
	testl	%ecx, %ecx
	jle	.L5
	movl	$1, %edx
	cmpl	$2, %eax
	jne	.L7
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L8:
	addl	$1, %edx
	cmpl	$2, %eax
	je	.L6
.L7:
	subl	$1, %eax
	cltq
	movl	16(%rsp,%rax,4), %eax
	cmpl	%edx, %ecx
	jne	.L8
.L5:
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
.L3:
	movq	400024(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$400032, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 32
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 24
	popq	%rbp
	.cfi_def_cfa_offset 16
	popq	%r12
	.cfi_def_cfa_offset 8
	ret
.L6:
	.cfi_restore_state
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L3
.L17:
	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(void){
    
    int i,n,a[100000],b;
    
    scanf("%d",&n);
    for(i=0;i<n;i++){
        scanf("%d",&a[i]);
    }
    
    i=0; b=a[0];
    while(i<n){
        i++;
        if(b==2){
            printf("%d\n",i);
            return 0;
        }
        else{
            b=a[b-1];
        }
    }
    printf("-1\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>
int main(void){
    
    int i,n,a[100000],b;
    
    scanf("%d",&n);
    for(i=0;i<n;i++){
        scanf("%d",&a[i]);
    }
    
    i=0; b=a[0];
    while(i<n){
        i++;
        if(b==2){
            printf("%d\n",i);
            return 0;
        }
        else{
            b=a[b-1];
        }
    }
    printf("-1\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:

3
3
1
3
 5
3
3
5
2
4
 4
4
3
1
2
 3
2
2
1
 5
3
0
4
2
4
 4
3
3
1
2
 3
3
2
3
 4
4
3
0
2
 4
4
4
0
2
 4
4
7
0
2

-1
 4
 2
 1
 3
 -1
 -1
 2
 2
 2

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(void){
    
    int i,n,a[100000],b;
    
    scanf("%d",&n);
    for(i=0;i<n;i++){
        scanf("%d",&a[i]);
    }
    
    i=0; b=a[0];
    while(i<n){
        i++;
        if(b==2){
            printf("%d\n",i);
            return 0;
        }
        else{
            b=a[b-1];
        }
    }
    printf("-1\n");
    return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d"
.LC1:
	.string	"-1"
.LC2:
	.string	"%d\n"
	.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
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	pushq	%rbx
	.cfi_def_cfa_offset 32
	.cfi_offset 3, -32
	leaq	-397312(%rsp), %r11
	.cfi_def_cfa 11, 397344
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$2720, %rsp
	.cfi_def_cfa_offset 400064
	leaq	.LC0(%rip), %r12
	xorl	%ebx, %ebx
	movq	%r12, %rdi
	movq	%fs:40, %rax
	movq	%rax, 400024(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rsi
	leaq	16(%rsp), %rbp
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %eax
	testl	%eax, %eax
	jle	.L5
	.p2align 4,,10
	.p2align 3
.L4:
	movq	%rbp, %rsi
	movq	%r12, %rdi
	xorl	%eax, %eax
	addl	$1, %ebx
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %ecx
	addq	$4, %rbp
	cmpl	%ebx, %ecx
	jg	.L4
	movl	16(%rsp), %eax
	testl	%ecx, %ecx
	jle	.L5
	movl	$1, %edx
	cmpl	$2, %eax
	jne	.L7
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L8:
	addl	$1, %edx
	cmpl	$2, %eax
	je	.L6
.L7:
	subl	$1, %eax
	cltq
	movl	16(%rsp,%rax,4), %eax
	cmpl	%edx, %ecx
	jne	.L8
.L5:
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
.L3:
	movq	400024(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$400032, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 32
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 24
	popq	%rbp
	.cfi_def_cfa_offset 16
	popq	%r12
	.cfi_def_cfa_offset 8
	ret
.L6:
	.cfi_restore_state
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L3
.L17:
	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	"-1"
.LC2:
	.string	"%d\n"
	.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
	pushq	%rbp
	.cfi_def_cfa_offset 24
	.cfi_offset 6, -24
	pushq	%rbx
	.cfi_def_cfa_offset 32
	.cfi_offset 3, -32
	leaq	-397312(%rsp), %r11
	.cfi_def_cfa 11, 397344
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$2720, %rsp
	.cfi_def_cfa_offset 400064
	leaq	.LC0(%rip), %r12
	xorl	%ebx, %ebx
	movq	%r12, %rdi
	movq	%fs:40, %rax
	movq	%rax, 400024(%rsp)
	xorl	%eax, %eax
	leaq	12(%rsp), %rsi
	leaq	16(%rsp), %rbp
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %eax
	testl	%eax, %eax
	jle	.L5
	.p2align 4,,10
	.p2align 3
.L4:
	movq	%rbp, %rsi
	movq	%r12, %rdi
	xorl	%eax, %eax
	addl	$1, %ebx
	call	__isoc99_scanf@PLT
	movl	12(%rsp), %ecx
	addq	$4, %rbp
	cmpl	%ebx, %ecx
	jg	.L4
	movl	16(%rsp), %eax
	testl	%ecx, %ecx
	jle	.L5
	movl	$1, %edx
	cmpl	$2, %eax
	jne	.L7
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L8:
	addl	$1, %edx
	cmpl	$2, %eax
	je	.L6
.L7:
	subl	$1, %eax
	cltq
	movl	16(%rsp,%rax,4), %eax
	cmpl	%edx, %ecx
	jne	.L8
.L5:
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
.L3:
	movq	400024(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$400032, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 32
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 24
	popq	%rbp
	.cfi_def_cfa_offset 16
	popq	%r12
	.cfi_def_cfa_offset 8
	ret
.L6:
	.cfi_restore_state
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L3
.L17:
	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:
```