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>

int main(void){
  long long a,b,c,K;
  scanf("%lld%lld%lld%lld",&a,&b,&c,&K);

  long long ans;
  if(K%2 != 0) ans = b-a;
  else ans = a-b;

  if(llabs(ans) <= 1e18)
    printf("%lld\n",ans);
  else
    printf("Unfair\n");

  return 0;
}```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%lld%lld%lld%lld"
.LC2:
	.string	"%lld\n"
.LC3:
	.string	"Unfair"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB39:
	.cfi_startproc
	endbr64
	subq	$56, %rsp
	.cfi_def_cfa_offset 64
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 40(%rsp)
	xorl	%eax, %eax
	leaq	24(%rsp), %rcx
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	leaq	32(%rsp), %r8
	call	__isoc99_scanf@PLT
	testb	$1, 32(%rsp)
	je	.L2
	movq	16(%rsp), %rdx
	subq	8(%rsp), %rdx
.L3:
	movq	%rdx, %rax
	pxor	%xmm0, %xmm0
	movsd	.LC1(%rip), %xmm1
	negq	%rax
	cmovs	%rdx, %rax
	cvtsi2sdq	%rax, %xmm0
	comisd	%xmm0, %xmm1
	jb	.L9
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L6:
	movq	40(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$56, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	movq	8(%rsp), %rdx
	subq	16(%rsp), %rdx
	jmp	.L3
.L9:
	leaq	.LC3(%rip), %rdi
	call	puts@PLT
	jmp	.L6
.L12:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE39:
	.size	main, .-main
	.section	.rodata.cst8,"aM",@progbits,8
	.align 8
.LC1:
	.long	1733216256
	.long	1135329645
	.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	"%lld%lld%lld%lld"
.LC2:
	.string	"%lld\n"
.LC3:
	.string	"Unfair"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB39:
	.cfi_startproc
	endbr64
	subq	$56, %rsp
	.cfi_def_cfa_offset 64
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 40(%rsp)
	xorl	%eax, %eax
	leaq	24(%rsp), %rcx
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	leaq	32(%rsp), %r8
	call	__isoc99_scanf@PLT
	testb	$1, 32(%rsp)
	je	.L2
	movq	16(%rsp), %rdx
	subq	8(%rsp), %rdx
.L3:
	movq	%rdx, %rax
	pxor	%xmm0, %xmm0
	movsd	.LC1(%rip), %xmm1
	negq	%rax
	cmovs	%rdx, %rax
	cvtsi2sdq	%rax, %xmm0
	comisd	%xmm0, %xmm1
	jb	.L9
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L6:
	movq	40(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$56, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	movq	8(%rsp), %rdx
	subq	16(%rsp), %rdx
	jmp	.L3
.L9:
	leaq	.LC3(%rip), %rdi
	call	puts@PLT
	jmp	.L6
.L12:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE39:
	.size	main, .-main
	.section	.rodata.cst8,"aM",@progbits,8
	.align 8
.LC1:
	.long	1733216256
	.long	1135329645
	.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	"%lld%lld%lld%lld"
.LC2:
	.string	"%lld\n"
.LC3:
	.string	"Unfair"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB39:
	.cfi_startproc
	endbr64
	subq	$56, %rsp
	.cfi_def_cfa_offset 64
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 40(%rsp)
	xorl	%eax, %eax
	leaq	24(%rsp), %rcx
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	leaq	32(%rsp), %r8
	call	__isoc99_scanf@PLT
	testb	$1, 32(%rsp)
	je	.L2
	movq	16(%rsp), %rdx
	subq	8(%rsp), %rdx
.L3:
	movq	%rdx, %rax
	pxor	%xmm0, %xmm0
	movsd	.LC1(%rip), %xmm1
	negq	%rax
	cmovs	%rdx, %rax
	cvtsi2sdq	%rax, %xmm0
	comisd	%xmm0, %xmm1
	jb	.L9
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L6:
	movq	40(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$56, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	movq	8(%rsp), %rdx
	subq	16(%rsp), %rdx
	jmp	.L3
.L9:
	leaq	.LC3(%rip), %rdi
	call	puts@PLT
	jmp	.L6
.L12:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE39:
	.size	main, .-main
	.section	.rodata.cst8,"aM",@progbits,8
	.align 8
.LC1:
	.long	1733216256
	.long	1135329645
	.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>

int main(void){
  long long a,b,c,K;
  scanf("%lld%lld%lld%lld",&a,&b,&c,&K);

  long long ans;
  if(K%2 != 0) ans = b-a;
  else ans = a-b;

  if(llabs(ans) <= 1e18)
    printf("%lld\n",ans);
  else
    printf("Unfair\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>
#include <stdlib.h>

int main(void){
  long long a,b,c,K;
  scanf("%lld%lld%lld%lld",&a,&b,&c,&K);

  long long ans;
  if(K%2 != 0) ans = b-a;
  else ans = a-b;

  if(llabs(ans) <= 1e18)
    printf("%lld\n",ans);
  else
    printf("Unfair\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:

2 2 3 1
 0 3 2 0
 1000000000 1000000010 1000000000 1000000000000000000
 2 3 3 1
 4 3 3 1
 0 3 2 -1
 -1 3 4 -1
 1000000000 0000000010 1000000010 1000010100000000000
 -2 3 8 -1
 1000010000 0000000010 1100000010 1000010100000000000

0
 -3
 -10
 1
 -1
 3
 4
 999999990
 5
 1000009990

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>

int main(void){
  long long a,b,c,K;
  scanf("%lld%lld%lld%lld",&a,&b,&c,&K);

  long long ans;
  if(K%2 != 0) ans = b-a;
  else ans = a-b;

  if(llabs(ans) <= 1e18)
    printf("%lld\n",ans);
  else
    printf("Unfair\n");

  return 0;
}```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%lld%lld%lld%lld"
.LC2:
	.string	"%lld\n"
.LC3:
	.string	"Unfair"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB39:
	.cfi_startproc
	endbr64
	subq	$56, %rsp
	.cfi_def_cfa_offset 64
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 40(%rsp)
	xorl	%eax, %eax
	leaq	24(%rsp), %rcx
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	leaq	32(%rsp), %r8
	call	__isoc99_scanf@PLT
	testb	$1, 32(%rsp)
	je	.L2
	movq	16(%rsp), %rdx
	subq	8(%rsp), %rdx
.L3:
	movq	%rdx, %rax
	pxor	%xmm0, %xmm0
	movsd	.LC1(%rip), %xmm1
	negq	%rax
	cmovs	%rdx, %rax
	cvtsi2sdq	%rax, %xmm0
	comisd	%xmm0, %xmm1
	jb	.L9
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L6:
	movq	40(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$56, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	movq	8(%rsp), %rdx
	subq	16(%rsp), %rdx
	jmp	.L3
.L9:
	leaq	.LC3(%rip), %rdi
	call	puts@PLT
	jmp	.L6
.L12:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE39:
	.size	main, .-main
	.section	.rodata.cst8,"aM",@progbits,8
	.align 8
.LC1:
	.long	1733216256
	.long	1135329645
	.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	"%lld%lld%lld%lld"
.LC2:
	.string	"%lld\n"
.LC3:
	.string	"Unfair"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB39:
	.cfi_startproc
	endbr64
	subq	$56, %rsp
	.cfi_def_cfa_offset 64
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 40(%rsp)
	xorl	%eax, %eax
	leaq	24(%rsp), %rcx
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	leaq	32(%rsp), %r8
	call	__isoc99_scanf@PLT
	testb	$1, 32(%rsp)
	je	.L2
	movq	16(%rsp), %rdx
	subq	8(%rsp), %rdx
.L3:
	movq	%rdx, %rax
	pxor	%xmm0, %xmm0
	movsd	.LC1(%rip), %xmm1
	negq	%rax
	cmovs	%rdx, %rax
	cvtsi2sdq	%rax, %xmm0
	comisd	%xmm0, %xmm1
	jb	.L9
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L6:
	movq	40(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$56, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	movq	8(%rsp), %rdx
	subq	16(%rsp), %rdx
	jmp	.L3
.L9:
	leaq	.LC3(%rip), %rdi
	call	puts@PLT
	jmp	.L6
.L12:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE39:
	.size	main, .-main
	.section	.rodata.cst8,"aM",@progbits,8
	.align 8
.LC1:
	.long	1733216256
	.long	1135329645
	.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:
```