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>
int main(void) {
  int i, a, mai;
  for( i = 0 ; i < 4 ; i++ ) {
    scanf("%d%d",&a,&mai);
    if(a == 1) {
      printf("%d\n",6000*mai);
    }
    if(a == 2) {
      printf("%d\n",4000*mai);
    }
    if(a == 3) {
      printf("%d\n",3000*mai);
    }
    if(a == 4) {
      printf("%d\n",2000*mai);
    }
  }
  return(0);
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d%d"
.LC1:
	.string	"%d\n"
	.text
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$32, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	movl	$0, -12(%rbp)
	jmp	.L2
.L7:
	leaq	-16(%rbp), %rdx
	leaq	-20(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	-20(%rbp), %eax
	cmpl	$1, %eax
	jne	.L3
	movl	-16(%rbp), %eax
	imull	$6000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L3:
	movl	-20(%rbp), %eax
	cmpl	$2, %eax
	jne	.L4
	movl	-16(%rbp), %eax
	imull	$4000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L4:
	movl	-20(%rbp), %eax
	cmpl	$3, %eax
	jne	.L5
	movl	-16(%rbp), %eax
	imull	$3000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L5:
	movl	-20(%rbp), %eax
	cmpl	$4, %eax
	jne	.L6
	movl	-16(%rbp), %eax
	imull	$2000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L6:
	addl	$1, -12(%rbp)
.L2:
	cmpl	$3, -12(%rbp)
	jle	.L7
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L9
	call	__stack_chk_fail@PLT
.L9:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.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	"%d%d"
.LC1:
	.string	"%d\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r14
	.cfi_def_cfa_offset 16
	.cfi_offset 14, -16
	leaq	.LC1(%rip), %r14
	pushq	%r13
	.cfi_def_cfa_offset 24
	.cfi_offset 13, -24
	pushq	%r12
	.cfi_def_cfa_offset 32
	.cfi_offset 12, -32
	pushq	%rbp
	.cfi_def_cfa_offset 40
	.cfi_offset 6, -40
	leaq	.LC0(%rip), %rbp
	pushq	%rbx
	.cfi_def_cfa_offset 48
	.cfi_offset 3, -48
	movl	$4, %ebx
	subq	$16, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	leaq	4(%rsp), %r13
	movq	%rsp, %r12
.L6:
	movq	%r13, %rdx
	movq	%r12, %rsi
	movq	%rbp, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movl	(%rsp), %eax
	cmpl	$1, %eax
	je	.L11
.L2:
	cmpl	$2, %eax
	je	.L12
.L3:
	cmpl	$3, %eax
	je	.L13
.L4:
	cmpl	$4, %eax
	je	.L14
.L5:
	subl	$1, %ebx
	jne	.L6
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L15
	addq	$16, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 48
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 40
	popq	%rbp
	.cfi_def_cfa_offset 32
	popq	%r12
	.cfi_def_cfa_offset 24
	popq	%r13
	.cfi_def_cfa_offset 16
	popq	%r14
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L14:
	.cfi_restore_state
	imull	$2000, 4(%rsp), %edx
	movq	%r14, %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L5
	.p2align 4,,10
	.p2align 3
.L13:
	imull	$3000, 4(%rsp), %edx
	movq	%r14, %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movl	(%rsp), %eax
	jmp	.L4
	.p2align 4,,10
	.p2align 3
.L12:
	imull	$4000, 4(%rsp), %edx
	movq	%r14, %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movl	(%rsp), %eax
	jmp	.L3
	.p2align 4,,10
	.p2align 3
.L11:
	imull	$6000, 4(%rsp), %edx
	movq	%r14, %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movl	(%rsp), %eax
	jmp	.L2
.L15:
	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
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d%d"
.LC1:
	.string	"%d\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r14
	.cfi_def_cfa_offset 16
	.cfi_offset 14, -16
	leaq	.LC1(%rip), %r14
	pushq	%r13
	.cfi_def_cfa_offset 24
	.cfi_offset 13, -24
	pushq	%r12
	.cfi_def_cfa_offset 32
	.cfi_offset 12, -32
	pushq	%rbp
	.cfi_def_cfa_offset 40
	.cfi_offset 6, -40
	leaq	.LC0(%rip), %rbp
	pushq	%rbx
	.cfi_def_cfa_offset 48
	.cfi_offset 3, -48
	movl	$4, %ebx
	subq	$16, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	leaq	4(%rsp), %r13
	movq	%rsp, %r12
.L6:
	movq	%r13, %rdx
	movq	%r12, %rsi
	movq	%rbp, %rdi
	xorl	%eax, %eax
	call	__isoc99_scanf@PLT
	movl	(%rsp), %eax
	cmpl	$1, %eax
	je	.L11
.L2:
	cmpl	$2, %eax
	je	.L12
.L3:
	cmpl	$3, %eax
	je	.L13
.L4:
	cmpl	$4, %eax
	je	.L14
.L5:
	subl	$1, %ebx
	jne	.L6
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L15
	addq	$16, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 48
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 40
	popq	%rbp
	.cfi_def_cfa_offset 32
	popq	%r12
	.cfi_def_cfa_offset 24
	popq	%r13
	.cfi_def_cfa_offset 16
	popq	%r14
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L14:
	.cfi_restore_state
	imull	$2000, 4(%rsp), %edx
	movq	%r14, %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	jmp	.L5
	.p2align 4,,10
	.p2align 3
.L13:
	imull	$3000, 4(%rsp), %edx
	movq	%r14, %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movl	(%rsp), %eax
	jmp	.L4
	.p2align 4,,10
	.p2align 3
.L12:
	imull	$4000, 4(%rsp), %edx
	movq	%r14, %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movl	(%rsp), %eax
	jmp	.L3
	.p2align 4,,10
	.p2align 3
.L11:
	imull	$6000, 4(%rsp), %edx
	movq	%r14, %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
	movl	(%rsp), %eax
	jmp	.L2
.L15:
	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:

#include <stdio.h>
int main(void) {
  int i, a, mai;
  for( i = 0 ; i < 4 ; i++ ) {
    scanf("%d%d",&a,&mai);
    if(a == 1) {
      printf("%d\n",6000*mai);
    }
    if(a == 2) {
      printf("%d\n",4000*mai);
    }
    if(a == 3) {
      printf("%d\n",3000*mai);
    }
    if(a == 4) {
      printf("%d\n",2000*mai);
    }
  }
  return(0);
}
3 10
1 4
4 1
1 5
 3 13
1 4
4 1
1 5
 3 13
1 4
1 1
1 5
 3 13
1 4
1 2
1 5
 2 13
1 4
1 2
1 5
 2 13
1 4
1 2
1 3
 2 13
1 6
1 2
1 3
 3 10
1 0
4 1
2 5
 3 10
1 4
2 1
1 5
 3 16
1 4
1 1
1 5

30000
24000
2000
30000
 39000
24000
2000
30000
 39000
24000
6000
30000
 39000
24000
12000
30000
 52000
24000
12000
30000
 52000
24000
12000
18000
 52000
36000
12000
18000
 30000
0
2000
20000
 30000
24000
4000
30000
 48000
24000
6000
30000

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>
int main(void) {
  int i, a, mai;
  for( i = 0 ; i < 4 ; i++ ) {
    scanf("%d%d",&a,&mai);
    if(a == 1) {
      printf("%d\n",6000*mai);
    }
    if(a == 2) {
      printf("%d\n",4000*mai);
    }
    if(a == 3) {
      printf("%d\n",3000*mai);
    }
    if(a == 4) {
      printf("%d\n",2000*mai);
    }
  }
  return(0);
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d%d"
.LC1:
	.string	"%d\n"
	.text
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$32, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	movl	$0, -12(%rbp)
	jmp	.L2
.L7:
	leaq	-16(%rbp), %rdx
	leaq	-20(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	-20(%rbp), %eax
	cmpl	$1, %eax
	jne	.L3
	movl	-16(%rbp), %eax
	imull	$6000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L3:
	movl	-20(%rbp), %eax
	cmpl	$2, %eax
	jne	.L4
	movl	-16(%rbp), %eax
	imull	$4000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L4:
	movl	-20(%rbp), %eax
	cmpl	$3, %eax
	jne	.L5
	movl	-16(%rbp), %eax
	imull	$3000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L5:
	movl	-20(%rbp), %eax
	cmpl	$4, %eax
	jne	.L6
	movl	-16(%rbp), %eax
	imull	$2000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L6:
	addl	$1, -12(%rbp)
.L2:
	cmpl	$3, -12(%rbp)
	jle	.L7
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L9
	call	__stack_chk_fail@PLT
.L9:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.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	"%d%d"
.LC1:
	.string	"%d\n"
	.text
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	pushq	%rbp
	.cfi_def_cfa_offset 16
	.cfi_offset 6, -16
	movq	%rsp, %rbp
	.cfi_def_cfa_register 6
	subq	$32, %rsp
	movq	%fs:40, %rax
	movq	%rax, -8(%rbp)
	xorl	%eax, %eax
	movl	$0, -12(%rbp)
	jmp	.L2
.L7:
	leaq	-16(%rbp), %rdx
	leaq	-20(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	-20(%rbp), %eax
	cmpl	$1, %eax
	jne	.L3
	movl	-16(%rbp), %eax
	imull	$6000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L3:
	movl	-20(%rbp), %eax
	cmpl	$2, %eax
	jne	.L4
	movl	-16(%rbp), %eax
	imull	$4000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L4:
	movl	-20(%rbp), %eax
	cmpl	$3, %eax
	jne	.L5
	movl	-16(%rbp), %eax
	imull	$3000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L5:
	movl	-20(%rbp), %eax
	cmpl	$4, %eax
	jne	.L6
	movl	-16(%rbp), %eax
	imull	$2000, %eax, %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L6:
	addl	$1, -12(%rbp)
.L2:
	cmpl	$3, -12(%rbp)
	jle	.L7
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L9
	call	__stack_chk_fail@PLT
.L9:
	leave
	.cfi_def_cfa 7, 8
	ret
	.cfi_endproc
.LFE0:
	.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:
