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

```c
main(a,b){scanf("%d%d",&a,&b);printf("%d",a>9|b>9?-1:a*b);}```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d%d"
.LC1:
	.string	"%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	subq	$24, %rsp
	.cfi_def_cfa_offset 32
	xorl	%eax, %eax
	movl	%edi, 12(%rsp)
	leaq	8(%rsp), %rdx
	leaq	.LC0(%rip), %rdi
	movl	%esi, 8(%rsp)
	leaq	12(%rsp), %rsi
	call	scanf@PLT
	movl	12(%rsp), %esi
	movl	8(%rsp), %eax
	cmpl	$9, %esi
	jg	.L3
	cmpl	$9, %eax
	jg	.L3
	imull	%eax, %esi
.L2:
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	printf@PLT
	xorl	%eax, %eax
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L3:
	.cfi_restore_state
	orl	$-1, %esi
	jmp	.L2
	.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.
Optimized Assembly Code:

user
```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d%d"
.LC1:
	.string	"%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	subq	$24, %rsp
	.cfi_def_cfa_offset 32
	xorl	%eax, %eax
	movl	%edi, 12(%rsp)
	leaq	8(%rsp), %rdx
	leaq	.LC0(%rip), %rdi
	movl	%esi, 8(%rsp)
	leaq	12(%rsp), %rsi
	call	scanf@PLT
	movl	12(%rsp), %esi
	movl	8(%rsp), %eax
	cmpl	$9, %esi
	jg	.L3
	cmpl	$9, %eax
	jg	.L3
	imull	%eax, %esi
.L2:
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	printf@PLT
	xorl	%eax, %eax
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L3:
	.cfi_restore_state
	orl	$-1, %esi
	jmp	.L2
	.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:
```
rule
```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d%d"
.LC1:
	.string	"%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	subq	$24, %rsp
	.cfi_def_cfa_offset 32
	xorl	%eax, %eax
	movl	%edi, 12(%rsp)
	leaq	8(%rsp), %rdx
	leaq	.LC0(%rip), %rdi
	movl	%esi, 8(%rsp)
	leaq	12(%rsp), %rsi
	call	scanf@PLT
	movl	12(%rsp), %esi
	movl	8(%rsp), %eax
	cmpl	$9, %esi
	jg	.L3
	cmpl	$9, %eax
	jg	.L3
	imull	%eax, %esi
.L2:
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	printf@PLT
	xorl	%eax, %eax
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L3:
	.cfi_restore_state
	orl	$-1, %esi
	jmp	.L2
	.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:
```
```c
main(a,b){scanf("%d%d",&a,&b);printf("%d",a>9|b>9?-1:a*b);}```
Given the following C code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
main(a,b){scanf("%d%d",&a,&b);printf("%d",a>9|b>9?-1:a*b);}```

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 8
 9 5
 7 10
 3 8
 9 8
 7 7
 6 8
 7 9
 7 8
 7 3

16 45 -1 24 72 49 48 63 56 21
Given the following C code and assembly code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
main(a,b){scanf("%d%d",&a,&b);printf("%d",a>9|b>9?-1:a*b);}```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d%d"
.LC1:
	.string	"%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	subq	$24, %rsp
	.cfi_def_cfa_offset 32
	xorl	%eax, %eax
	movl	%edi, 12(%rsp)
	leaq	8(%rsp), %rdx
	leaq	.LC0(%rip), %rdi
	movl	%esi, 8(%rsp)
	leaq	12(%rsp), %rsi
	call	scanf@PLT
	movl	12(%rsp), %esi
	movl	8(%rsp), %eax
	cmpl	$9, %esi
	jg	.L3
	cmpl	$9, %eax
	jg	.L3
	imull	%eax, %esi
.L2:
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	printf@PLT
	xorl	%eax, %eax
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L3:
	.cfi_restore_state
	orl	$-1, %esi
	jmp	.L2
	.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.
Optimized Assembly Code:

train
```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%d%d"
.LC1:
	.string	"%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB0:
	.cfi_startproc
	endbr64
	subq	$24, %rsp
	.cfi_def_cfa_offset 32
	xorl	%eax, %eax
	movl	%edi, 12(%rsp)
	leaq	8(%rsp), %rdx
	leaq	.LC0(%rip), %rdi
	movl	%esi, 8(%rsp)
	leaq	12(%rsp), %rsi
	call	scanf@PLT
	movl	12(%rsp), %esi
	movl	8(%rsp), %eax
	cmpl	$9, %esi
	jg	.L3
	cmpl	$9, %eax
	jg	.L3
	imull	%eax, %esi
.L2:
	leaq	.LC1(%rip), %rdi
	xorl	%eax, %eax
	call	printf@PLT
	xorl	%eax, %eax
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L3:
	.cfi_restore_state
	orl	$-1, %esi
	jmp	.L2
	.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:
```