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

```c
int a, b;
int main(){
  scanf("%d%d", &a, &b);
  if(a%b){
    printf("%d\n", a);
  }else{
    puts("-1");
  }
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.globl	a
	.bss
	.align 4
	.type	a, @object
	.size	a, 4
a:
	.zero	4
	.globl	b
	.align 4
	.type	b, @object
	.size	b, 4
b:
	.zero	4
	.section	.rodata
.LC0:
	.string	"%d%d"
.LC1:
	.string	"%d\n"
.LC2:
	.string	"-1"
	.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
	leaq	b(%rip), %rax
	movq	%rax, %rdx
	leaq	a(%rip), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	scanf@PLT
	movl	a(%rip), %eax
	movl	b(%rip), %ecx
	cltd
	idivl	%ecx
	movl	%edx, %eax
	testl	%eax, %eax
	je	.L2
	movl	a(%rip), %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	jmp	.L3
.L2:
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
.L3:
	movl	$0, %eax
	popq	%rbp
	.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"
.LC2:
	.string	"-1"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	leaq	b(%rip), %rdx
	leaq	a(%rip), %rsi
	subq	$8, %rsp
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	leaq	.LC0(%rip), %rdi
	call	scanf@PLT
	movl	a(%rip), %esi
	movl	%esi, %eax
	cltd
	idivl	b(%rip)
	testl	%edx, %edx
	je	.L2
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	printf@PLT
.L3:
	xorl	%eax, %eax
	addq	$8, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC2(%rip), %rdi
	call	puts@PLT
	jmp	.L3
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.globl	b
	.bss
	.align 4
	.type	b, @object
	.size	b, 4
b:
	.zero	4
	.globl	a
	.align 4
	.type	a, @object
	.size	a, 4
a:
	.zero	4
	.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"
.LC2:
	.string	"-1"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	leaq	b(%rip), %rdx
	leaq	a(%rip), %rsi
	subq	$8, %rsp
	.cfi_def_cfa_offset 16
	xorl	%eax, %eax
	leaq	.LC0(%rip), %rdi
	call	scanf@PLT
	movl	a(%rip), %esi
	movl	%esi, %eax
	cltd
	idivl	b(%rip)
	testl	%edx, %edx
	je	.L2
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	printf@PLT
.L3:
	xorl	%eax, %eax
	addq	$8, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC2(%rip), %rdi
	call	puts@PLT
	jmp	.L3
	.cfi_endproc
.LFE0:
	.size	main, .-main
	.globl	b
	.bss
	.align 4
	.type	b, @object
	.size	b, 4
b:
	.zero	4
	.globl	a
	.align 4
	.type	a, @object
	.size	a, 4
a:
	.zero	4
	.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:

int a, b;
int main(){
  scanf("%d%d", &a, &b);
  if(a%b){
    printf("%d\n", a);
  }else{
    puts("-1");
  }
}
3 4
 8 2
 8 3
 6 4
 2 3
 15 2
 7 2
 13 2
 1 2
 11 6

3
 -1
 8
 6
 2
 15
 7
 13
 1
 11

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

```c
int a, b;
int main(){
  scanf("%d%d", &a, &b);
  if(a%b){
    printf("%d\n", a);
  }else{
    puts("-1");
  }
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.globl	a
	.bss
	.align 4
	.type	a, @object
	.size	a, 4
a:
	.zero	4
	.globl	b
	.align 4
	.type	b, @object
	.size	b, 4
b:
	.zero	4
	.section	.rodata
.LC0:
	.string	"%d%d"
.LC1:
	.string	"%d\n"
.LC2:
	.string	"-1"
	.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
	leaq	b(%rip), %rax
	movq	%rax, %rdx
	leaq	a(%rip), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	scanf@PLT
	movl	a(%rip), %eax
	movl	b(%rip), %ecx
	cltd
	idivl	%ecx
	movl	%edx, %eax
	testl	%eax, %eax
	je	.L2
	movl	a(%rip), %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	jmp	.L3
.L2:
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
.L3:
	movl	$0, %eax
	popq	%rbp
	.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
	.globl	a
	.bss
	.align 4
	.type	a, @object
	.size	a, 4
a:
	.zero	4
	.globl	b
	.align 4
	.type	b, @object
	.size	b, 4
b:
	.zero	4
	.section	.rodata
.LC0:
	.string	"%d%d"
.LC1:
	.string	"%d\n"
.LC2:
	.string	"-1"
	.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
	leaq	b(%rip), %rax
	movq	%rax, %rdx
	leaq	a(%rip), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	scanf@PLT
	movl	a(%rip), %eax
	movl	b(%rip), %ecx
	cltd
	idivl	%ecx
	movl	%edx, %eax
	testl	%eax, %eax
	je	.L2
	movl	a(%rip), %eax
	movl	%eax, %esi
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	jmp	.L3
.L2:
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
.L3:
	movl	$0, %eax
	popq	%rbp
	.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:
