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

```c
#include<stdio.h>
int main()
{
    long long int a,b;
    double k;
    scanf("%lld %lld",&a, &b);
    k=(a+b)/2.0;
    if(k-(long long int)k==0)
    {
        printf("%lld\n",(long long int)k);
    }
    else
        printf("IMPOSSIBLE\n");
    return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%lld %lld"
.LC3:
	.string	"%lld\n"
.LC4:
	.string	"IMPOSSIBLE"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movq	16(%rsp), %rax
	pxor	%xmm0, %xmm0
	addq	8(%rsp), %rax
	cvtsi2sdq	%rax, %xmm0
	mulsd	.LC1(%rip), %xmm0
	pxor	%xmm1, %xmm1
	cvttsd2siq	%xmm0, %rdx
	cvtsi2sdq	%rdx, %xmm1
	subsd	%xmm1, %xmm0
	ucomisd	.LC2(%rip), %xmm0
	jp	.L2
	jne	.L2
	leaq	.LC3(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L4:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L9
	xorl	%eax, %eax
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC4(%rip), %rdi
	call	puts@PLT
	jmp	.L4
.L9:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.size	main, .-main
	.section	.rodata.cst8,"aM",@progbits,8
	.align 8
.LC1:
	.long	0
	.long	1071644672
	.align 8
.LC2:
	.long	0
	.long	0
	.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	"%lld %lld"
.LC3:
	.string	"%lld\n"
.LC4:
	.string	"IMPOSSIBLE"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movq	16(%rsp), %rax
	pxor	%xmm0, %xmm0
	addq	8(%rsp), %rax
	cvtsi2sdq	%rax, %xmm0
	mulsd	.LC1(%rip), %xmm0
	pxor	%xmm1, %xmm1
	cvttsd2siq	%xmm0, %rdx
	cvtsi2sdq	%rdx, %xmm1
	subsd	%xmm1, %xmm0
	ucomisd	.LC2(%rip), %xmm0
	jp	.L2
	jne	.L2
	leaq	.LC3(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L4:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L9
	xorl	%eax, %eax
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC4(%rip), %rdi
	call	puts@PLT
	jmp	.L4
.L9:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.size	main, .-main
	.section	.rodata.cst8,"aM",@progbits,8
	.align 8
.LC1:
	.long	0
	.long	1071644672
	.align 8
.LC2:
	.long	0
	.long	0
	.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	"%lld %lld"
.LC3:
	.string	"%lld\n"
.LC4:
	.string	"IMPOSSIBLE"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movq	16(%rsp), %rax
	pxor	%xmm0, %xmm0
	addq	8(%rsp), %rax
	cvtsi2sdq	%rax, %xmm0
	mulsd	.LC1(%rip), %xmm0
	pxor	%xmm1, %xmm1
	cvttsd2siq	%xmm0, %rdx
	cvtsi2sdq	%rdx, %xmm1
	subsd	%xmm1, %xmm0
	ucomisd	.LC2(%rip), %xmm0
	jp	.L2
	jne	.L2
	leaq	.LC3(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L4:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L9
	xorl	%eax, %eax
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC4(%rip), %rdi
	call	puts@PLT
	jmp	.L4
.L9:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.size	main, .-main
	.section	.rodata.cst8,"aM",@progbits,8
	.align 8
.LC1:
	.long	0
	.long	1071644672
	.align 8
.LC2:
	.long	0
	.long	0
	.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
#include<stdio.h>
int main()
{
    long long int a,b;
    double k;
    scanf("%lld %lld",&a, &b);
    k=(a+b)/2.0;
    if(k-(long long int)k==0)
    {
        printf("%lld\n",(long long int)k);
    }
    else
        printf("IMPOSSIBLE\n");
    return 0;
}
```
Given the following C code, your task is to generate highly optimized x86-64 assembly code.
C Code:

```c
#include<stdio.h>
int main()
{
    long long int a,b;
    double k;
    scanf("%lld %lld",&a, &b);
    k=(a+b)/2.0;
    if(k-(long long int)k==0)
    {
        printf("%lld\n",(long long int)k);
    }
    else
        printf("IMPOSSIBLE\n");
    return 0;
}
```

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:

899758294 99824435
 0 4
 1349313191 99824435
 0 2
 1 7
 1349313191 6197513
 1 13
 2563528379 6197513
 2563528379 9221341
 2563528379 13118121

IMPOSSIBLE
 2
 724568813
 1
 4
 677755352
 7
 1284862946
 1286374860
 1288323250

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

```c
#include<stdio.h>
int main()
{
    long long int a,b;
    double k;
    scanf("%lld %lld",&a, &b);
    k=(a+b)/2.0;
    if(k-(long long int)k==0)
    {
        printf("%lld\n",(long long int)k);
    }
    else
        printf("IMPOSSIBLE\n");
    return 0;
}
```

Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"%lld %lld"
.LC3:
	.string	"%lld\n"
.LC4:
	.string	"IMPOSSIBLE"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movq	16(%rsp), %rax
	pxor	%xmm0, %xmm0
	addq	8(%rsp), %rax
	cvtsi2sdq	%rax, %xmm0
	mulsd	.LC1(%rip), %xmm0
	pxor	%xmm1, %xmm1
	cvttsd2siq	%xmm0, %rdx
	cvtsi2sdq	%rdx, %xmm1
	subsd	%xmm1, %xmm0
	ucomisd	.LC2(%rip), %xmm0
	jp	.L2
	jne	.L2
	leaq	.LC3(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L4:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L9
	xorl	%eax, %eax
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC4(%rip), %rdi
	call	puts@PLT
	jmp	.L4
.L9:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.size	main, .-main
	.section	.rodata.cst8,"aM",@progbits,8
	.align 8
.LC1:
	.long	0
	.long	1071644672
	.align 8
.LC2:
	.long	0
	.long	0
	.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	"%lld %lld"
.LC3:
	.string	"%lld\n"
.LC4:
	.string	"IMPOSSIBLE"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	subq	$40, %rsp
	.cfi_def_cfa_offset 48
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 24(%rsp)
	xorl	%eax, %eax
	leaq	16(%rsp), %rdx
	leaq	8(%rsp), %rsi
	call	__isoc99_scanf@PLT
	movq	16(%rsp), %rax
	pxor	%xmm0, %xmm0
	addq	8(%rsp), %rax
	cvtsi2sdq	%rax, %xmm0
	mulsd	.LC1(%rip), %xmm0
	pxor	%xmm1, %xmm1
	cvttsd2siq	%xmm0, %rdx
	cvtsi2sdq	%rdx, %xmm1
	subsd	%xmm1, %xmm0
	ucomisd	.LC2(%rip), %xmm0
	jp	.L2
	jne	.L2
	leaq	.LC3(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L4:
	movq	24(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L9
	xorl	%eax, %eax
	addq	$40, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L2:
	.cfi_restore_state
	leaq	.LC4(%rip), %rdi
	call	puts@PLT
	jmp	.L4
.L9:
	call	__stack_chk_fail@PLT
	.cfi_endproc
.LFE23:
	.size	main, .-main
	.section	.rodata.cst8,"aM",@progbits,8
	.align 8
.LC1:
	.long	0
	.long	1071644672
	.align 8
.LC2:
	.long	0
	.long	0
	.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:
```