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()
{
	long long int n;
	scanf("%lld", &n);
	if (n % 2 > 0)
		printf("0\n");
	else
	{
		long long int ans = 0, c = 5;
		n /= 2;
		while (n >= c)
		{
			ans += n / c;
			c *= 5;
		}
		printf("%lld\n", ans);
	}
	return 0;
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%lld"
.LC1:
	.string	"0"
.LC2:
	.string	"%lld\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
	leaq	-32(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movq	-32(%rbp), %rax
	cqto
	shrq	$63, %rdx
	addq	%rdx, %rax
	andl	$1, %eax
	subq	%rdx, %rax
	testq	%rax, %rax
	jle	.L2
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L3
.L2:
	movq	$0, -24(%rbp)
	movq	$5, -16(%rbp)
	movq	-32(%rbp), %rax
	movq	%rax, %rdx
	shrq	$63, %rdx
	addq	%rdx, %rax
	sarq	%rax
	movq	%rax, -32(%rbp)
	jmp	.L4
.L5:
	movq	-32(%rbp), %rax
	cqto
	idivq	-16(%rbp)
	addq	%rax, -24(%rbp)
	movq	-16(%rbp), %rdx
	movq	%rdx, %rax
	salq	$2, %rax
	addq	%rdx, %rax
	movq	%rax, -16(%rbp)
.L4:
	movq	-32(%rbp), %rax
	cmpq	%rax, -16(%rbp)
	jle	.L5
	movq	-24(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L3:
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L7
	call	__stack_chk_fail@PLT
.L7:
	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	"%lld"
.LC1:
	.string	"0"
.LC2:
	.string	"%lld\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	subq	$24, %rsp
	.cfi_def_cfa_offset 32
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	call	__isoc99_scanf@PLT
	movq	(%rsp), %rdx
	movq	%rdx, %rcx
	shrq	$63, %rcx
	leaq	(%rdx,%rcx), %rax
	andl	$1, %eax
	subq	%rcx, %rax
	cmpq	$1, %rax
	je	.L11
	movq	%rdx, %rsi
	shrq	$63, %rsi
	addq	%rdx, %rsi
	sarq	%rsi
	movq	%rsi, (%rsp)
	cmpq	$9, %rdx
	jle	.L7
	movl	$5, %ecx
	xorl	%r8d, %r8d
	.p2align 4,,10
	.p2align 3
.L5:
	movq	%rsi, %rax
	cqto
	idivq	%rcx
	leaq	(%rcx,%rcx,4), %rcx
	addq	%rax, %r8
	cmpq	%rcx, %rsi
	jge	.L5
.L4:
	movq	%r8, %rdx
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L3:
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L11:
	.cfi_restore_state
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
	jmp	.L3
.L7:
	xorl	%r8d, %r8d
	jmp	.L4
.L12:
	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	"%lld"
.LC1:
	.string	"0"
.LC2:
	.string	"%lld\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	subq	$24, %rsp
	.cfi_def_cfa_offset 32
	leaq	.LC0(%rip), %rdi
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	movq	%rsp, %rsi
	call	__isoc99_scanf@PLT
	movq	(%rsp), %rdx
	movq	%rdx, %rcx
	shrq	$63, %rcx
	leaq	(%rdx,%rcx), %rax
	andl	$1, %eax
	subq	%rcx, %rax
	cmpq	$1, %rax
	je	.L11
	movq	%rdx, %rsi
	shrq	$63, %rsi
	addq	%rdx, %rsi
	sarq	%rsi
	movq	%rsi, (%rsp)
	cmpq	$9, %rdx
	jle	.L7
	movl	$5, %ecx
	xorl	%r8d, %r8d
	.p2align 4,,10
	.p2align 3
.L5:
	movq	%rsi, %rax
	cqto
	idivq	%rcx
	leaq	(%rcx,%rcx,4), %rcx
	addq	%rax, %r8
	cmpq	%rcx, %rsi
	jge	.L5
.L4:
	movq	%r8, %rdx
	leaq	.LC2(%rip), %rsi
	movl	$1, %edi
	xorl	%eax, %eax
	call	__printf_chk@PLT
.L3:
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L12
	xorl	%eax, %eax
	addq	$24, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 8
	ret
.L11:
	.cfi_restore_state
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
	jmp	.L3
.L7:
	xorl	%r8d, %r8d
	jmp	.L4
.L12:
	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()
{
	long long int n;
	scanf("%lld", &n);
	if (n % 2 > 0)
		printf("0\n");
	else
	{
		long long int ans = 0, c = 5;
		n /= 2;
		while (n >= c)
		{
			ans += n / c;
			c *= 5;
		}
		printf("%lld\n", ans);
	}
	return 0;
}
1000000000010000000
 7
 10
 1000000000010001000
 1010000000010001000
 24
 1010100000010001000
 1010100000011001000
 1010100000011101000
 30

125000000001249993
 0
 1
 125000000001250117
 126250000001250117
 2
 126262500001250116
 126262500001375116
 126262500001387616
 3

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()
{
	long long int n;
	scanf("%lld", &n);
	if (n % 2 > 0)
		printf("0\n");
	else
	{
		long long int ans = 0, c = 5;
		n /= 2;
		while (n >= c)
		{
			ans += n / c;
			c *= 5;
		}
		printf("%lld\n", ans);
	}
	return 0;
}```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%lld"
.LC1:
	.string	"0"
.LC2:
	.string	"%lld\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
	leaq	-32(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movq	-32(%rbp), %rax
	cqto
	shrq	$63, %rdx
	addq	%rdx, %rax
	andl	$1, %eax
	subq	%rdx, %rax
	testq	%rax, %rax
	jle	.L2
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L3
.L2:
	movq	$0, -24(%rbp)
	movq	$5, -16(%rbp)
	movq	-32(%rbp), %rax
	movq	%rax, %rdx
	shrq	$63, %rdx
	addq	%rdx, %rax
	sarq	%rax
	movq	%rax, -32(%rbp)
	jmp	.L4
.L5:
	movq	-32(%rbp), %rax
	cqto
	idivq	-16(%rbp)
	addq	%rax, -24(%rbp)
	movq	-16(%rbp), %rdx
	movq	%rdx, %rax
	salq	$2, %rax
	addq	%rdx, %rax
	movq	%rax, -16(%rbp)
.L4:
	movq	-32(%rbp), %rax
	cmpq	%rax, -16(%rbp)
	jle	.L5
	movq	-24(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L3:
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L7
	call	__stack_chk_fail@PLT
.L7:
	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	"%lld"
.LC1:
	.string	"0"
.LC2:
	.string	"%lld\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
	leaq	-32(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movq	-32(%rbp), %rax
	cqto
	shrq	$63, %rdx
	addq	%rdx, %rax
	andl	$1, %eax
	subq	%rdx, %rax
	testq	%rax, %rax
	jle	.L2
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	jmp	.L3
.L2:
	movq	$0, -24(%rbp)
	movq	$5, -16(%rbp)
	movq	-32(%rbp), %rax
	movq	%rax, %rdx
	shrq	$63, %rdx
	addq	%rdx, %rax
	sarq	%rax
	movq	%rax, -32(%rbp)
	jmp	.L4
.L5:
	movq	-32(%rbp), %rax
	cqto
	idivq	-16(%rbp)
	addq	%rax, -24(%rbp)
	movq	-16(%rbp), %rdx
	movq	%rdx, %rax
	salq	$2, %rax
	addq	%rdx, %rax
	movq	%rax, -16(%rbp)
.L4:
	movq	-32(%rbp), %rax
	cmpq	%rax, -16(%rbp)
	jle	.L5
	movq	-24(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
.L3:
	movl	$0, %eax
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L7
	call	__stack_chk_fail@PLT
.L7:
	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:
