Given the following C code and unoptimized assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include<stdio.h>

typedef long long int int64;

void run(void){
  int64 a,b,c,k;
  scanf("%lld%lld%lld%lld",&a,&b,&c,&k);
  printf("%lld\n",k%2==0?a-b:b-a);
}

int main(void){
  run();
  return 0;
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%lld%lld%lld%lld"
.LC1:
	.string	"%lld\n"
	.text
	.globl	run
	.type	run, @function
run:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$48, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	leaq	-16(%rbp), %rsi
	leaq	-24(%rbp), %rcx
	leaq	-32(%rbp), %rdx
	leaq	-40(%rbp), %rax
	movq	%rsi, %r8
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movq	-16(%rbp), %rax
	andl	$1, %eax
	testq	%rax, %rax
	jne	.L2
	movq	-40(%rbp), %rax
	movq	-32(%rbp), %rdx
	subq	%rdx, %rax
	jmp	.L3
.L2:
	movq	-32(%rbp), %rax
	movq	-40(%rbp), %rdx
	subq	%rdx, %rax
.L3:
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	nop
	movq	-8(%rbp), %rax
	subq	%fs:40, %rax
	je	.L4
	call	__stack_chk_fail@PLT
.L4:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.size	run, .-run
	.globl	main
	.type	main, @function
main:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	call	run
	movl	$0, %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE1:
	.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.
user
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%lld%lld%lld%lld"
.LC1:
	.string	"%lld\n"
	.text
	.p2align 4
	.globl	run
	.type	run, @function
run:
.LFB23:
	.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)
	jne	.L2
	movq	8(%rsp), %rdx
	subq	16(%rsp), %rdx
.L3:
	xorl	%eax, %eax
	leaq	.LC1(%rip), %rsi
	movl	$1, %edi
	call	__printf_chk@PLT
	movq	40(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L7
	addq	$56, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L2:
	.cfi_restore_state
	movq	16(%rsp), %rdx
	subq	8(%rsp), %rdx
	jmp	.L3
.L7:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.size	run, .-run
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB24:
	.cfi_startproc
	endbr64
	subq	$8, %rsp
	.cfi_def_cfa_offset 16
	call	run
	xorl	%eax, %eax
	addq	$8, %rsp
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE24:
	.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
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%lld%lld%lld%lld"
.LC1:
	.string	"%lld\n"
	.text
	.p2align 4
	.globl	run
	.type	run, @function
run:
.LFB23:
	.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)
	jne	.L2
	movq	8(%rsp), %rdx
	subq	16(%rsp), %rdx
.L3:
	xorl	%eax, %eax
	leaq	.LC1(%rip), %rsi
	movl	$1, %edi
	call	__printf_chk@PLT
	movq	40(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L7
	addq	$56, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L2:
	.cfi_restore_state
	movq	16(%rsp), %rdx
	subq	8(%rsp), %rdx
	jmp	.L3
.L7:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.size	run, .-run
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB24:
	.cfi_startproc
	endbr64
	subq	$8, %rsp
	.cfi_def_cfa_offset 16
	call	run
	xorl	%eax, %eax
	addq	$8, %rsp
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE24:
	.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:

#include<stdio.h>

typedef long long int int64;

void run(void){
  int64 a,b,c,k;
  scanf("%lld%lld%lld%lld",&a,&b,&c,&k);
  printf("%lld\n",k%2==0?a-b:b-a);
}

int main(void){
  run();
  return 0;
}
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 unoptimized assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include<stdio.h>

typedef long long int int64;

void run(void){
  int64 a,b,c,k;
  scanf("%lld%lld%lld%lld",&a,&b,&c,&k);
  printf("%lld\n",k%2==0?a-b:b-a);
}

int main(void){
  run();
  return 0;
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%lld%lld%lld%lld"
.LC1:
	.string	"%lld\n"
	.text
	.globl	run
	.type	run, @function
run:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$48, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	leaq	-16(%rbp), %rsi
	leaq	-24(%rbp), %rcx
	leaq	-32(%rbp), %rdx
	leaq	-40(%rbp), %rax
	movq	%rsi, %r8
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movq	-16(%rbp), %rax
	andl	$1, %eax
	testq	%rax, %rax
	jne	.L2
	movq	-40(%rbp), %rax
	movq	-32(%rbp), %rdx
	subq	%rdx, %rax
	jmp	.L3
.L2:
	movq	-32(%rbp), %rax
	movq	-40(%rbp), %rdx
	subq	%rdx, %rax
.L3:
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	nop
	movq	-8(%rbp), %rax
	subq	%fs:40, %rax
	je	.L4
	call	__stack_chk_fail@PLT
.L4:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.size	run, .-run
	.globl	main
	.type	main, @function
main:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	call	run
	movl	$0, %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE1:
	.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.
train
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%lld%lld%lld%lld"
.LC1:
	.string	"%lld\n"
	.text
	.globl	run
	.type	run, @function
run:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$48, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	leaq	-16(%rbp), %rsi
	leaq	-24(%rbp), %rcx
	leaq	-32(%rbp), %rdx
	leaq	-40(%rbp), %rax
	movq	%rsi, %r8
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movq	-16(%rbp), %rax
	andl	$1, %eax
	testq	%rax, %rax
	jne	.L2
	movq	-40(%rbp), %rax
	movq	-32(%rbp), %rdx
	subq	%rdx, %rax
	jmp	.L3
.L2:
	movq	-32(%rbp), %rax
	movq	-40(%rbp), %rdx
	subq	%rdx, %rax
.L3:
	movq	%rax, %rsi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	nop
	movq	-8(%rbp), %rax
	subq	%fs:40, %rax
	je	.L4
	call	__stack_chk_fail@PLT
.L4:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.size	run, .-run
	.globl	main
	.type	main, @function
main:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	call	run
	movl	$0, %eax
	popq	%rbp
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE1:
	.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:
