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

```c
gcd(a,b){return b?gcd(b,a%b):a;}
main()
{
	int K;
	scanf("%*d%d",&K);
	int M=0,G=0,A;
	for(;~scanf("%d",&A);G=gcd(G,A))if(M<A)M=A;
	puts(M<K||K%G?"IMPOSSIBLE":"POSSIBLE");
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.p2align 4
	.globl	gcd
	.type	gcd, @function
gcd:
.LFB0:
	.cfi_startproc
	endbr64
	movl	%edi, %eax
	movl	%esi, %r8d
	testl	%esi, %esi
	jne	.L3
	jmp	.L7
	.p2align 4,,10
	.p2align 3
.L5:
	movl	%edx, %r8d
.L3:
	cltd
	idivl	%r8d
	movl	%r8d, %eax
	testl	%edx, %edx
	jne	.L5
	movl	%r8d, %eax
	ret
	.p2align 4,,10
	.p2align 3
.L7:
	movl	%edi, %r8d
	movl	%r8d, %eax
	ret
	.cfi_endproc
.LFE0:
	.size	gcd, .-gcd
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"IMPOSSIBLE"
.LC1:
	.string	"POSSIBLE"
.LC2:
	.string	"%*d%d"
.LC3:
	.string	"%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC2(%rip), %rdi
	xorl	%r13d, %r13d
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	leaq	.LC3(%rip), %rbp
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	xorl	%ebx, %ebx
	subq	$24, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	leaq	4(%rsp), %r12
	call	scanf@PLT
	.p2align 4,,10
	.p2align 3
.L9:
	xorl	%eax, %eax
	movq	%r12, %rsi
	movq	%rbp, %rdi
	call	scanf@PLT
	cmpl	$-1, %eax
	je	.L20
	movl	4(%rsp), %ecx
	cmpl	%ecx, %r13d
	cmovl	%ecx, %r13d
	testl	%ecx, %ecx
	jne	.L11
	jmp	.L21
	.p2align 4,,10
	.p2align 3
.L16:
	movl	%edx, %ecx
.L11:
	movl	%ebx, %eax
	movl	%ecx, %ebx
	cltd
	idivl	%ecx
	testl	%edx, %edx
	jne	.L16
	movl	%ecx, %ebx
	jmp	.L9
	.p2align 4,,10
	.p2align 3
.L20:
	movl	(%rsp), %eax
	leaq	.LC0(%rip), %rdi
	cmpl	%r13d, %eax
	jg	.L13
	cltd
	idivl	%ebx
	leaq	.LC1(%rip), %rax
	testl	%edx, %edx
	cmove	%rax, %rdi
.L13:
	call	puts@PLT
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L22
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L21:
	.cfi_restore_state
	movl	%ebx, %ecx
	movl	%ecx, %ebx
	jmp	.L9
.L22:
	call	__stack_chk_fail@PLT
	.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.
Optimized Assembly Code:

user
```assembly
	.file	"temp.c"
	.text
	.p2align 4
	.globl	gcd
	.type	gcd, @function
gcd:
.LFB0:
	.cfi_startproc
	endbr64
	movl	%edi, %eax
	movl	%esi, %r8d
	testl	%esi, %esi
	jne	.L3
	jmp	.L7
	.p2align 4,,10
	.p2align 3
.L5:
	movl	%edx, %r8d
.L3:
	cltd
	idivl	%r8d
	movl	%r8d, %eax
	testl	%edx, %edx
	jne	.L5
	movl	%r8d, %eax
	ret
	.p2align 4,,10
	.p2align 3
.L7:
	movl	%edi, %r8d
	movl	%r8d, %eax
	ret
	.cfi_endproc
.LFE0:
	.size	gcd, .-gcd
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"IMPOSSIBLE"
.LC1:
	.string	"POSSIBLE"
.LC2:
	.string	"%*d%d"
.LC3:
	.string	"%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC2(%rip), %rdi
	xorl	%r13d, %r13d
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	leaq	.LC3(%rip), %rbp
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	xorl	%ebx, %ebx
	subq	$24, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	leaq	4(%rsp), %r12
	call	scanf@PLT
	.p2align 4,,10
	.p2align 3
.L9:
	xorl	%eax, %eax
	movq	%r12, %rsi
	movq	%rbp, %rdi
	call	scanf@PLT
	cmpl	$-1, %eax
	je	.L20
	movl	4(%rsp), %ecx
	cmpl	%ecx, %r13d
	cmovl	%ecx, %r13d
	testl	%ecx, %ecx
	jne	.L11
	jmp	.L21
	.p2align 4,,10
	.p2align 3
.L16:
	movl	%edx, %ecx
.L11:
	movl	%ebx, %eax
	movl	%ecx, %ebx
	cltd
	idivl	%ecx
	testl	%edx, %edx
	jne	.L16
	movl	%ecx, %ebx
	jmp	.L9
	.p2align 4,,10
	.p2align 3
.L20:
	movl	(%rsp), %eax
	leaq	.LC0(%rip), %rdi
	cmpl	%r13d, %eax
	jg	.L13
	cltd
	idivl	%ebx
	leaq	.LC1(%rip), %rax
	testl	%edx, %edx
	cmove	%rax, %rdi
.L13:
	call	puts@PLT
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L22
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L21:
	.cfi_restore_state
	movl	%ebx, %ecx
	movl	%ecx, %ebx
	jmp	.L9
.L22:
	call	__stack_chk_fail@PLT
	.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:
```
rule
```assembly
	.file	"temp.c"
	.text
	.p2align 4
	.globl	gcd
	.type	gcd, @function
gcd:
.LFB0:
	.cfi_startproc
	endbr64
	movl	%edi, %eax
	movl	%esi, %r8d
	testl	%esi, %esi
	jne	.L3
	jmp	.L7
	.p2align 4,,10
	.p2align 3
.L5:
	movl	%edx, %r8d
.L3:
	cltd
	idivl	%r8d
	movl	%r8d, %eax
	testl	%edx, %edx
	jne	.L5
	movl	%r8d, %eax
	ret
	.p2align 4,,10
	.p2align 3
.L7:
	movl	%edi, %r8d
	movl	%r8d, %eax
	ret
	.cfi_endproc
.LFE0:
	.size	gcd, .-gcd
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"IMPOSSIBLE"
.LC1:
	.string	"POSSIBLE"
.LC2:
	.string	"%*d%d"
.LC3:
	.string	"%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC2(%rip), %rdi
	xorl	%r13d, %r13d
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	leaq	.LC3(%rip), %rbp
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	xorl	%ebx, %ebx
	subq	$24, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	leaq	4(%rsp), %r12
	call	scanf@PLT
	.p2align 4,,10
	.p2align 3
.L9:
	xorl	%eax, %eax
	movq	%r12, %rsi
	movq	%rbp, %rdi
	call	scanf@PLT
	cmpl	$-1, %eax
	je	.L20
	movl	4(%rsp), %ecx
	cmpl	%ecx, %r13d
	cmovl	%ecx, %r13d
	testl	%ecx, %ecx
	jne	.L11
	jmp	.L21
	.p2align 4,,10
	.p2align 3
.L16:
	movl	%edx, %ecx
.L11:
	movl	%ebx, %eax
	movl	%ecx, %ebx
	cltd
	idivl	%ecx
	testl	%edx, %edx
	jne	.L16
	movl	%ecx, %ebx
	jmp	.L9
	.p2align 4,,10
	.p2align 3
.L20:
	movl	(%rsp), %eax
	leaq	.LC0(%rip), %rdi
	cmpl	%r13d, %eax
	jg	.L13
	cltd
	idivl	%ebx
	leaq	.LC1(%rip), %rax
	testl	%edx, %edx
	cmove	%rax, %rdi
.L13:
	call	puts@PLT
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L22
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L21:
	.cfi_restore_state
	movl	%ebx, %ecx
	movl	%ecx, %ebx
	jmp	.L9
.L22:
	call	__stack_chk_fail@PLT
	.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:
```
```c
gcd(a,b){return b?gcd(b,a%b):a;}
main()
{
	int K;
	scanf("%*d%d",&K);
	int M=0,G=0,A;
	for(;~scanf("%d",&A);G=gcd(G,A))if(M<A)M=A;
	puts(M<K||K%G?"IMPOSSIBLE":"POSSIBLE");
}
```
Given the following C code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
gcd(a,b){return b?gcd(b,a%b):a;}
main()
{
	int K;
	scanf("%*d%d",&K);
	int M=0,G=0,A;
	for(;~scanf("%d",&A);G=gcd(G,A))if(M<A)M=A;
	puts(M<K||K%G?"IMPOSSIBLE":"POSSIBLE");
}
```

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:

4 11
11 3 7 10
 3 5
6 9 6
 5 19
10 2 8 6 4
 3 7
18 3 4
 3 11
11 3 7 10
 3 5
6 16 6
 5 19
10 2 8 6 1
 3 7
18 0 4
 2 5
6 16 6
 5 19
10 2 7 6 1

POSSIBLE
 IMPOSSIBLE
 IMPOSSIBLE
 POSSIBLE
 POSSIBLE
 IMPOSSIBLE
 IMPOSSIBLE
 IMPOSSIBLE
 IMPOSSIBLE
 IMPOSSIBLE

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

```c
gcd(a,b){return b?gcd(b,a%b):a;}
main()
{
	int K;
	scanf("%*d%d",&K);
	int M=0,G=0,A;
	for(;~scanf("%d",&A);G=gcd(G,A))if(M<A)M=A;
	puts(M<K||K%G?"IMPOSSIBLE":"POSSIBLE");
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.p2align 4
	.globl	gcd
	.type	gcd, @function
gcd:
.LFB0:
	.cfi_startproc
	endbr64
	movl	%edi, %eax
	movl	%esi, %r8d
	testl	%esi, %esi
	jne	.L3
	jmp	.L7
	.p2align 4,,10
	.p2align 3
.L5:
	movl	%edx, %r8d
.L3:
	cltd
	idivl	%r8d
	movl	%r8d, %eax
	testl	%edx, %edx
	jne	.L5
	movl	%r8d, %eax
	ret
	.p2align 4,,10
	.p2align 3
.L7:
	movl	%edi, %r8d
	movl	%r8d, %eax
	ret
	.cfi_endproc
.LFE0:
	.size	gcd, .-gcd
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"IMPOSSIBLE"
.LC1:
	.string	"POSSIBLE"
.LC2:
	.string	"%*d%d"
.LC3:
	.string	"%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC2(%rip), %rdi
	xorl	%r13d, %r13d
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	leaq	.LC3(%rip), %rbp
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	xorl	%ebx, %ebx
	subq	$24, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	leaq	4(%rsp), %r12
	call	scanf@PLT
	.p2align 4,,10
	.p2align 3
.L9:
	xorl	%eax, %eax
	movq	%r12, %rsi
	movq	%rbp, %rdi
	call	scanf@PLT
	cmpl	$-1, %eax
	je	.L20
	movl	4(%rsp), %ecx
	cmpl	%ecx, %r13d
	cmovl	%ecx, %r13d
	testl	%ecx, %ecx
	jne	.L11
	jmp	.L21
	.p2align 4,,10
	.p2align 3
.L16:
	movl	%edx, %ecx
.L11:
	movl	%ebx, %eax
	movl	%ecx, %ebx
	cltd
	idivl	%ecx
	testl	%edx, %edx
	jne	.L16
	movl	%ecx, %ebx
	jmp	.L9
	.p2align 4,,10
	.p2align 3
.L20:
	movl	(%rsp), %eax
	leaq	.LC0(%rip), %rdi
	cmpl	%r13d, %eax
	jg	.L13
	cltd
	idivl	%ebx
	leaq	.LC1(%rip), %rax
	testl	%edx, %edx
	cmove	%rax, %rdi
.L13:
	call	puts@PLT
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L22
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L21:
	.cfi_restore_state
	movl	%ebx, %ecx
	movl	%ecx, %ebx
	jmp	.L9
.L22:
	call	__stack_chk_fail@PLT
	.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.
Optimized Assembly Code:

train
```assembly
	.file	"temp.c"
	.text
	.p2align 4
	.globl	gcd
	.type	gcd, @function
gcd:
.LFB0:
	.cfi_startproc
	endbr64
	movl	%edi, %eax
	movl	%esi, %r8d
	testl	%esi, %esi
	jne	.L3
	jmp	.L7
	.p2align 4,,10
	.p2align 3
.L5:
	movl	%edx, %r8d
.L3:
	cltd
	idivl	%r8d
	movl	%r8d, %eax
	testl	%edx, %edx
	jne	.L5
	movl	%r8d, %eax
	ret
	.p2align 4,,10
	.p2align 3
.L7:
	movl	%edi, %r8d
	movl	%r8d, %eax
	ret
	.cfi_endproc
.LFE0:
	.size	gcd, .-gcd
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"IMPOSSIBLE"
.LC1:
	.string	"POSSIBLE"
.LC2:
	.string	"%*d%d"
.LC3:
	.string	"%d"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB1:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC2(%rip), %rdi
	xorl	%r13d, %r13d
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	leaq	.LC3(%rip), %rbp
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	xorl	%ebx, %ebx
	subq	$24, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	leaq	4(%rsp), %r12
	call	scanf@PLT
	.p2align 4,,10
	.p2align 3
.L9:
	xorl	%eax, %eax
	movq	%r12, %rsi
	movq	%rbp, %rdi
	call	scanf@PLT
	cmpl	$-1, %eax
	je	.L20
	movl	4(%rsp), %ecx
	cmpl	%ecx, %r13d
	cmovl	%ecx, %r13d
	testl	%ecx, %ecx
	jne	.L11
	jmp	.L21
	.p2align 4,,10
	.p2align 3
.L16:
	movl	%edx, %ecx
.L11:
	movl	%ebx, %eax
	movl	%ecx, %ebx
	cltd
	idivl	%ecx
	testl	%edx, %edx
	jne	.L16
	movl	%ecx, %ebx
	jmp	.L9
	.p2align 4,,10
	.p2align 3
.L20:
	movl	(%rsp), %eax
	leaq	.LC0(%rip), %rdi
	cmpl	%r13d, %eax
	jg	.L13
	cltd
	idivl	%ebx
	leaq	.LC1(%rip), %rax
	testl	%edx, %edx
	cmove	%rax, %rdi
.L13:
	call	puts@PLT
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L22
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 40
	xorl	%eax, %eax
	popq	%rbx
	.cfi_def_cfa_offset 32
	popq	%rbp
	.cfi_def_cfa_offset 24
	popq	%r12
	.cfi_def_cfa_offset 16
	popq	%r13
	.cfi_def_cfa_offset 8
	ret
	.p2align 4,,10
	.p2align 3
.L21:
	.cfi_restore_state
	movl	%ebx, %ecx
	movl	%ecx, %ebx
	jmp	.L9
.L22:
	call	__stack_chk_fail@PLT
	.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:
```