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(){
  char buf[1000];
  int a;
  fgets(buf, sizeof(buf), stdin);
  sscanf(buf, "%d", &a);
  if (a <1000) {
    printf("ABC");
  } else {
    printf("ABD");
  }
}```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d"
.LC1:
	.string	"ABC"
.LC2:
	.string	"ABD"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movl	$1000, %esi
	subq	$1024, %rsp
	.cfi_def_cfa_offset 1040
	movq	stdin(%rip), %rdx
	movq	%fs:40, %rax
	movq	%rax, 1016(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rbp
	movq	%rbp, %rdi
	call	fgets@PLT
	xorl	%eax, %eax
	leaq	12(%rsp), %rdx
	movq	%rbp, %rdi
	leaq	.LC0(%rip), %rsi
	call	__isoc99_sscanf@PLT
	cmpl	$999, 12(%rsp)
	jg	.L2
	leaq	.LC1(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L3:
	movq	1016(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L7
	addq	$1024, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L3
.L7:
	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	"ABC"
.LC2:
	.string	"ABD"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movl	$1000, %esi
	subq	$1024, %rsp
	.cfi_def_cfa_offset 1040
	movq	stdin(%rip), %rdx
	movq	%fs:40, %rax
	movq	%rax, 1016(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rbp
	movq	%rbp, %rdi
	call	fgets@PLT
	xorl	%eax, %eax
	leaq	12(%rsp), %rdx
	movq	%rbp, %rdi
	leaq	.LC0(%rip), %rsi
	call	__isoc99_sscanf@PLT
	cmpl	$999, 12(%rsp)
	jg	.L2
	leaq	.LC1(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L3:
	movq	1016(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L7
	addq	$1024, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L3
.L7:
	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	"ABC"
.LC2:
	.string	"ABD"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movl	$1000, %esi
	subq	$1024, %rsp
	.cfi_def_cfa_offset 1040
	movq	stdin(%rip), %rdx
	movq	%fs:40, %rax
	movq	%rax, 1016(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rbp
	movq	%rbp, %rdi
	call	fgets@PLT
	xorl	%eax, %eax
	leaq	12(%rsp), %rdx
	movq	%rbp, %rdi
	leaq	.LC0(%rip), %rsi
	call	__isoc99_sscanf@PLT
	cmpl	$999, 12(%rsp)
	jg	.L2
	leaq	.LC1(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L3:
	movq	1016(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L7
	addq	$1024, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L3
.L7:
	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(){
  char buf[1000];
  int a;
  fgets(buf, sizeof(buf), stdin);
  sscanf(buf, "%d", &a);
  if (a <1000) {
    printf("ABC");
  } else {
    printf("ABD");
  }
}```
Given the following C code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include<stdio.h>

int main(){
  char buf[1000];
  int a;
  fgets(buf, sizeof(buf), stdin);
  sscanf(buf, "%d", &a);
  if (a <1000) {
    printf("ABC");
  } else {
    printf("ABD");
  }
}```

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:

1001
 300
 1506
 1101
 972
 260
 1111
 842
 352
 0111

ABD ABC ABD ABD ABC ABC ABD ABC ABC ABC
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(){
  char buf[1000];
  int a;
  fgets(buf, sizeof(buf), stdin);
  sscanf(buf, "%d", &a);
  if (a <1000) {
    printf("ABC");
  } else {
    printf("ABD");
  }
}```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d"
.LC1:
	.string	"ABC"
.LC2:
	.string	"ABD"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movl	$1000, %esi
	subq	$1024, %rsp
	.cfi_def_cfa_offset 1040
	movq	stdin(%rip), %rdx
	movq	%fs:40, %rax
	movq	%rax, 1016(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rbp
	movq	%rbp, %rdi
	call	fgets@PLT
	xorl	%eax, %eax
	leaq	12(%rsp), %rdx
	movq	%rbp, %rdi
	leaq	.LC0(%rip), %rsi
	call	__isoc99_sscanf@PLT
	cmpl	$999, 12(%rsp)
	jg	.L2
	leaq	.LC1(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L3:
	movq	1016(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L7
	addq	$1024, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L3
.L7:
	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	"ABC"
.LC2:
	.string	"ABD"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movl	$1000, %esi
	subq	$1024, %rsp
	.cfi_def_cfa_offset 1040
	movq	stdin(%rip), %rdx
	movq	%fs:40, %rax
	movq	%rax, 1016(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rbp
	movq	%rbp, %rdi
	call	fgets@PLT
	xorl	%eax, %eax
	leaq	12(%rsp), %rdx
	movq	%rbp, %rdi
	leaq	.LC0(%rip), %rsi
	call	__isoc99_sscanf@PLT
	cmpl	$999, 12(%rsp)
	jg	.L2
	leaq	.LC1(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L3:
	movq	1016(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L7
	addq	$1024, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	popq	%rbp
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L3
.L7:
	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:
```