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<string.h>

int main(void) {
	int i;
	int p_a, p_z;
	int length;
	char string[262144];

	fgets(string, sizeof(string), stdin);
	length = strlen(string);

	p_a = -1;
	for(i = 0; i < length - 1; i += 1) {
		if(string[i] == 'A') {
			p_a = i;
			break;
		}
	}
	p_z = -1;
	for(i = length- 1; i > -1; i -= 1) {
		if(string[i] == 'Z') {
			p_z = i;
			break;
		}
	}
	printf("%d\n", p_z - p_a + 1);

	return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	-262144(%rsp), %r11
	.cfi_def_cfa 11, 262160
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$16, %rsp
	.cfi_def_cfa_offset 262176
	movq	stdin(%rip), %rdx
	movl	$262144, %esi
	movq	%fs:40, %rax
	movq	%rax, 262152(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rdi
	call	fgets@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	leal	-1(%rax), %edx
	testl	%edx, %edx
	jle	.L2
	leal	-2(%rax), %esi
	xorl	%eax, %eax
	jmp	.L4
	.p2align 4,,10
	.p2align 3
.L15:
	leaq	1(%rax), %rcx
	cmpq	%rsi, %rax
	je	.L14
	movq	%rcx, %rax
.L4:
	cmpb	$65, (%rbx,%rax)
	movl	%eax, %ecx
	jne	.L15
.L3:
	movslq	%edx, %rax
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L16:
	subq	$1, %rax
	movl	%eax, %edx
	cmpl	$-1, %eax
	je	.L5
.L6:
	cmpb	$90, (%rbx,%rax)
	movl	%eax, %edx
	jne	.L16
.L5:
	subl	%ecx, %edx
	xorl	%eax, %eax
	leaq	.LC0(%rip), %rsi
	movl	$1, %edi
	addl	$1, %edx
	call	__printf_chk@PLT
	movq	262152(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$262160, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L14:
	.cfi_restore_state
	orl	$-1, %ecx
	jmp	.L3
.L2:
	orl	$-1, %ecx
	cmpl	$-1, %edx
	je	.L5
	jmp	.L3
.L17:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.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\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	-262144(%rsp), %r11
	.cfi_def_cfa 11, 262160
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$16, %rsp
	.cfi_def_cfa_offset 262176
	movq	stdin(%rip), %rdx
	movl	$262144, %esi
	movq	%fs:40, %rax
	movq	%rax, 262152(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rdi
	call	fgets@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	leal	-1(%rax), %edx
	testl	%edx, %edx
	jle	.L2
	leal	-2(%rax), %esi
	xorl	%eax, %eax
	jmp	.L4
	.p2align 4,,10
	.p2align 3
.L15:
	leaq	1(%rax), %rcx
	cmpq	%rsi, %rax
	je	.L14
	movq	%rcx, %rax
.L4:
	cmpb	$65, (%rbx,%rax)
	movl	%eax, %ecx
	jne	.L15
.L3:
	movslq	%edx, %rax
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L16:
	subq	$1, %rax
	movl	%eax, %edx
	cmpl	$-1, %eax
	je	.L5
.L6:
	cmpb	$90, (%rbx,%rax)
	movl	%eax, %edx
	jne	.L16
.L5:
	subl	%ecx, %edx
	xorl	%eax, %eax
	leaq	.LC0(%rip), %rsi
	movl	$1, %edi
	addl	$1, %edx
	call	__printf_chk@PLT
	movq	262152(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$262160, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L14:
	.cfi_restore_state
	orl	$-1, %ecx
	jmp	.L3
.L2:
	orl	$-1, %ecx
	cmpl	$-1, %edx
	je	.L5
	jmp	.L3
.L17:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.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\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	-262144(%rsp), %r11
	.cfi_def_cfa 11, 262160
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$16, %rsp
	.cfi_def_cfa_offset 262176
	movq	stdin(%rip), %rdx
	movl	$262144, %esi
	movq	%fs:40, %rax
	movq	%rax, 262152(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rdi
	call	fgets@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	leal	-1(%rax), %edx
	testl	%edx, %edx
	jle	.L2
	leal	-2(%rax), %esi
	xorl	%eax, %eax
	jmp	.L4
	.p2align 4,,10
	.p2align 3
.L15:
	leaq	1(%rax), %rcx
	cmpq	%rsi, %rax
	je	.L14
	movq	%rcx, %rax
.L4:
	cmpb	$65, (%rbx,%rax)
	movl	%eax, %ecx
	jne	.L15
.L3:
	movslq	%edx, %rax
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L16:
	subq	$1, %rax
	movl	%eax, %edx
	cmpl	$-1, %eax
	je	.L5
.L6:
	cmpb	$90, (%rbx,%rax)
	movl	%eax, %edx
	jne	.L16
.L5:
	subl	%ecx, %edx
	xorl	%eax, %eax
	leaq	.LC0(%rip), %rsi
	movl	$1, %edi
	addl	$1, %edx
	call	__printf_chk@PLT
	movq	262152(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$262160, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L14:
	.cfi_restore_state
	orl	$-1, %ecx
	jmp	.L3
.L2:
	orl	$-1, %ecx
	cmpl	$-1, %edx
	je	.L5
	jmp	.L3
.L17:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.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<string.h>

int main(void) {
	int i;
	int p_a, p_z;
	int length;
	char string[262144];

	fgets(string, sizeof(string), stdin);
	length = strlen(string);

	p_a = -1;
	for(i = 0; i < length - 1; i += 1) {
		if(string[i] == 'A') {
			p_a = i;
			break;
		}
	}
	p_z = -1;
	for(i = length- 1; i > -1; i -= 1) {
		if(string[i] == 'Z') {
			p_z = i;
			break;
		}
	}
	printf("%d\n", p_z - p_a + 1);

	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<string.h>

int main(void) {
	int i;
	int p_a, p_z;
	int length;
	char string[262144];

	fgets(string, sizeof(string), stdin);
	length = strlen(string);

	p_a = -1;
	for(i = 0; i < length - 1; i += 1) {
		if(string[i] == 'A') {
			p_a = i;
			break;
		}
	}
	p_z = -1;
	for(i = length- 1; i > -1; i -= 1) {
		if(string[i] == 'Z') {
			p_z = i;
			break;
		}
	}
	printf("%d\n", p_z - p_a + 1);

	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:

HASFJGHOGAK[ZFEGA
 ZAACZ
 AGEFZKKAGOHH[FSAH
 IBAG[IHNGFKKZSFGB
 ZCAAZ
 QWERTAFSDXZXCV
 ZCAZB
 AIEFZGKAFOFGJZSAH
 I@SCIGHEA[KFGOKZA
 ICAF[IHNGFKZKSFGB

12
 4
 5
 11
 3
 6
 2
 14
 8
 10

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<string.h>

int main(void) {
	int i;
	int p_a, p_z;
	int length;
	char string[262144];

	fgets(string, sizeof(string), stdin);
	length = strlen(string);

	p_a = -1;
	for(i = 0; i < length - 1; i += 1) {
		if(string[i] == 'A') {
			p_a = i;
			break;
		}
	}
	p_z = -1;
	for(i = length- 1; i > -1; i -= 1) {
		if(string[i] == 'Z') {
			p_z = i;
			break;
		}
	}
	printf("%d\n", p_z - p_a + 1);

	return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	-262144(%rsp), %r11
	.cfi_def_cfa 11, 262160
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$16, %rsp
	.cfi_def_cfa_offset 262176
	movq	stdin(%rip), %rdx
	movl	$262144, %esi
	movq	%fs:40, %rax
	movq	%rax, 262152(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rdi
	call	fgets@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	leal	-1(%rax), %edx
	testl	%edx, %edx
	jle	.L2
	leal	-2(%rax), %esi
	xorl	%eax, %eax
	jmp	.L4
	.p2align 4,,10
	.p2align 3
.L15:
	leaq	1(%rax), %rcx
	cmpq	%rsi, %rax
	je	.L14
	movq	%rcx, %rax
.L4:
	cmpb	$65, (%rbx,%rax)
	movl	%eax, %ecx
	jne	.L15
.L3:
	movslq	%edx, %rax
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L16:
	subq	$1, %rax
	movl	%eax, %edx
	cmpl	$-1, %eax
	je	.L5
.L6:
	cmpb	$90, (%rbx,%rax)
	movl	%eax, %edx
	jne	.L16
.L5:
	subl	%ecx, %edx
	xorl	%eax, %eax
	leaq	.LC0(%rip), %rsi
	movl	$1, %edi
	addl	$1, %edx
	call	__printf_chk@PLT
	movq	262152(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$262160, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L14:
	.cfi_restore_state
	orl	$-1, %ecx
	jmp	.L3
.L2:
	orl	$-1, %ecx
	cmpl	$-1, %edx
	je	.L5
	jmp	.L3
.L17:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.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\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB51:
	.cfi_startproc
	endbr64
	pushq	%rbx
	.cfi_def_cfa_offset 16
	.cfi_offset 3, -16
	leaq	-262144(%rsp), %r11
	.cfi_def_cfa 11, 262160
.LPSRL0:
	subq	$4096, %rsp
	orq	$0, (%rsp)
	cmpq	%r11, %rsp
	jne	.LPSRL0
	.cfi_def_cfa_register 7
	subq	$16, %rsp
	.cfi_def_cfa_offset 262176
	movq	stdin(%rip), %rdx
	movl	$262144, %esi
	movq	%fs:40, %rax
	movq	%rax, 262152(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rbx
	movq	%rbx, %rdi
	call	fgets@PLT
	movq	%rbx, %rdi
	call	strlen@PLT
	leal	-1(%rax), %edx
	testl	%edx, %edx
	jle	.L2
	leal	-2(%rax), %esi
	xorl	%eax, %eax
	jmp	.L4
	.p2align 4,,10
	.p2align 3
.L15:
	leaq	1(%rax), %rcx
	cmpq	%rsi, %rax
	je	.L14
	movq	%rcx, %rax
.L4:
	cmpb	$65, (%rbx,%rax)
	movl	%eax, %ecx
	jne	.L15
.L3:
	movslq	%edx, %rax
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L16:
	subq	$1, %rax
	movl	%eax, %edx
	cmpl	$-1, %eax
	je	.L5
.L6:
	cmpb	$90, (%rbx,%rax)
	movl	%eax, %edx
	jne	.L16
.L5:
	subl	%ecx, %edx
	xorl	%eax, %eax
	leaq	.LC0(%rip), %rsi
	movl	$1, %edi
	addl	$1, %edx
	call	__printf_chk@PLT
	movq	262152(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L17
	addq	$262160, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 8
	ret
.L14:
	.cfi_restore_state
	orl	$-1, %ecx
	jmp	.L3
.L2:
	orl	$-1, %ecx
	cmpl	$-1, %edx
	je	.L5
	jmp	.L3
.L17:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE51:
	.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:
```