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(){
  int n,m,i,j;
  scanf("%d %d",&n,&m);
  if((n-1)*(n-2)/2<m){
    printf("-1\n");
    return 0;
  }
  m=n*(n-1)/2-m;
  printf("%d\n",m);
  for(i=1;i<=n;i++){
    for(j=i+1;j<=n;j++){
      printf("%d %d\n",i,j);
      if(--m==0)return 0;
    }
  }
}
```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d %d"
.LC1:
	.string	"-1"
.LC2:
	.string	"%d\n"
.LC3:
	.string	"%d %d\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	-20(%rbp), %rdx
	leaq	-24(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	-24(%rbp), %eax
	leal	-1(%rax), %edx
	movl	-24(%rbp), %eax
	subl	$2, %eax
	imull	%edx, %eax
	movl	%eax, %edx
	shrl	$31, %edx
	addl	%edx, %eax
	sarl	%eax
	movl	%eax, %edx
	movl	-20(%rbp), %eax
	cmpl	%eax, %edx
	jge	.L2
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	movl	$0, %eax
	jmp	.L9
.L2:
	movl	-24(%rbp), %eax
	leal	-1(%rax), %edx
	movl	-24(%rbp), %eax
	imull	%edx, %eax
	movl	%eax, %edx
	shrl	$31, %edx
	addl	%edx, %eax
	sarl	%eax
	movl	-20(%rbp), %edx
	subl	%edx, %eax
	movl	%eax, -20(%rbp)
	movl	-20(%rbp), %eax
	movl	%eax, %esi
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$1, -16(%rbp)
	jmp	.L4
.L8:
	movl	-16(%rbp), %eax
	addl	$1, %eax
	movl	%eax, -12(%rbp)
	jmp	.L5
.L7:
	movl	-12(%rbp), %edx
	movl	-16(%rbp), %eax
	movl	%eax, %esi
	leaq	.LC3(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	-20(%rbp), %eax
	subl	$1, %eax
	movl	%eax, -20(%rbp)
	movl	-20(%rbp), %eax
	testl	%eax, %eax
	jne	.L6
	movl	$0, %eax
	jmp	.L9
.L6:
	addl	$1, -12(%rbp)
.L5:
	movl	-24(%rbp), %eax
	cmpl	%eax, -12(%rbp)
	jle	.L7
	addl	$1, -16(%rbp)
.L4:
	movl	-24(%rbp), %eax
	cmpl	%eax, -16(%rbp)
	jle	.L8
	movl	$0, %eax
.L9:
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L10
	call	__stack_chk_fail@PLT
.L10:
	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	"%d %d"
.LC1:
	.string	"-1"
.LC2:
	.string	"%d\n"
.LC3:
	.string	"%d %d\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC0(%rip), %rdi
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	subq	$24, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	leaq	4(%rsp), %rdx
	movq	%rsp, %rsi
	call	__isoc99_scanf@PLT
	movl	(%rsp), %eax
	movl	4(%rsp), %ecx
	leal	-1(%rax), %esi
	subl	$2, %eax
	imull	%esi, %eax
	movl	%eax, %edx
	shrl	$31, %edx
	addl	%eax, %edx
	sarl	%edx
	cmpl	%ecx, %edx
	jl	.L17
	leal	(%rax,%rsi,2), %eax
	movl	$2, %esi
	movl	$1, %edi
	movl	$1, %ebp
	cltd
	leaq	.LC3(%rip), %r12
	idivl	%esi
	leaq	.LC2(%rip), %rsi
	subl	%ecx, %eax
	movl	%eax, 4(%rsp)
	movl	%eax, %edx
	xorl	%eax, %eax
	call	__printf_chk@PLT
	cmpl	$0, (%rsp)
	jle	.L3
.L4:
	leal	1(%rbp), %r13d
	cmpl	(%rsp), %r13d
	jg	.L3
	movl	%r13d, %ebx
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L19:
	movl	(%rsp), %eax
	addl	$1, %ebx
	cmpl	%ebx, %eax
	jl	.L18
.L6:
	xorl	%eax, %eax
	movl	%ebx, %ecx
	movl	%ebp, %edx
	movq	%r12, %rsi
	movl	$1, %edi
	call	__printf_chk@PLT
	subl	$1, 4(%rsp)
	jne	.L19
.L3:
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L20
	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
.L18:
	.cfi_restore_state
	cmpl	%r13d, %eax
	jl	.L3
	movl	%r13d, %ebp
	jmp	.L4
.L17:
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
	jmp	.L3
.L20:
	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	"%d %d"
.LC1:
	.string	"-1"
.LC2:
	.string	"%d\n"
.LC3:
	.string	"%d %d\n"
	.section	.text.startup,"ax",@progbits
	.p2align 4
	.globl	main
	.type	main, @function
main:
.LFB23:
	.cfi_startproc
	endbr64
	pushq	%r13
	.cfi_def_cfa_offset 16
	.cfi_offset 13, -16
	leaq	.LC0(%rip), %rdi
	pushq	%r12
	.cfi_def_cfa_offset 24
	.cfi_offset 12, -24
	pushq	%rbp
	.cfi_def_cfa_offset 32
	.cfi_offset 6, -32
	pushq	%rbx
	.cfi_def_cfa_offset 40
	.cfi_offset 3, -40
	subq	$24, %rsp
	.cfi_def_cfa_offset 64
	movq	%fs:40, %rax
	movq	%rax, 8(%rsp)
	xorl	%eax, %eax
	leaq	4(%rsp), %rdx
	movq	%rsp, %rsi
	call	__isoc99_scanf@PLT
	movl	(%rsp), %eax
	movl	4(%rsp), %ecx
	leal	-1(%rax), %esi
	subl	$2, %eax
	imull	%esi, %eax
	movl	%eax, %edx
	shrl	$31, %edx
	addl	%eax, %edx
	sarl	%edx
	cmpl	%ecx, %edx
	jl	.L17
	leal	(%rax,%rsi,2), %eax
	movl	$2, %esi
	movl	$1, %edi
	movl	$1, %ebp
	cltd
	leaq	.LC3(%rip), %r12
	idivl	%esi
	leaq	.LC2(%rip), %rsi
	subl	%ecx, %eax
	movl	%eax, 4(%rsp)
	movl	%eax, %edx
	xorl	%eax, %eax
	call	__printf_chk@PLT
	cmpl	$0, (%rsp)
	jle	.L3
.L4:
	leal	1(%rbp), %r13d
	cmpl	(%rsp), %r13d
	jg	.L3
	movl	%r13d, %ebx
	jmp	.L6
	.p2align 4,,10
	.p2align 3
.L19:
	movl	(%rsp), %eax
	addl	$1, %ebx
	cmpl	%ebx, %eax
	jl	.L18
.L6:
	xorl	%eax, %eax
	movl	%ebx, %ecx
	movl	%ebp, %edx
	movq	%r12, %rsi
	movl	$1, %edi
	call	__printf_chk@PLT
	subl	$1, 4(%rsp)
	jne	.L19
.L3:
	movq	8(%rsp), %rax
	subq	%fs:40, %rax
	jne	.L20
	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
.L18:
	.cfi_restore_state
	cmpl	%r13d, %eax
	jl	.L3
	movl	%r13d, %ebp
	jmp	.L4
.L17:
	leaq	.LC1(%rip), %rdi
	call	puts@PLT
	jmp	.L3
.L20:
	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(){
  int n,m,i,j;
  scanf("%d %d",&n,&m);
  if((n-1)*(n-2)/2<m){
    printf("-1\n");
    return 0;
  }
  m=n*(n-1)/2-m;
  printf("%d\n",m);
  for(i=1;i<=n;i++){
    for(j=i+1;j<=n;j++){
      printf("%d %d\n",i,j);
      if(--m==0)return 0;
    }
  }
}

5 3

7
1 2
1 3
1 4
1 5
2 3
2 4
2 5

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(){
  int n,m,i,j;
  scanf("%d %d",&n,&m);
  if((n-1)*(n-2)/2<m){
    printf("-1\n");
    return 0;
  }
  m=n*(n-1)/2-m;
  printf("%d\n",m);
  for(i=1;i<=n;i++){
    for(j=i+1;j<=n;j++){
      printf("%d %d\n",i,j);
      if(--m==0)return 0;
    }
  }
}
```

Unoptimized Assembly Code:

```assembly
	.file	"temp.c"
	.text
	.section	.rodata
.LC0:
	.string	"%d %d"
.LC1:
	.string	"-1"
.LC2:
	.string	"%d\n"
.LC3:
	.string	"%d %d\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	-20(%rbp), %rdx
	leaq	-24(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	-24(%rbp), %eax
	leal	-1(%rax), %edx
	movl	-24(%rbp), %eax
	subl	$2, %eax
	imull	%edx, %eax
	movl	%eax, %edx
	shrl	$31, %edx
	addl	%edx, %eax
	sarl	%eax
	movl	%eax, %edx
	movl	-20(%rbp), %eax
	cmpl	%eax, %edx
	jge	.L2
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	movl	$0, %eax
	jmp	.L9
.L2:
	movl	-24(%rbp), %eax
	leal	-1(%rax), %edx
	movl	-24(%rbp), %eax
	imull	%edx, %eax
	movl	%eax, %edx
	shrl	$31, %edx
	addl	%edx, %eax
	sarl	%eax
	movl	-20(%rbp), %edx
	subl	%edx, %eax
	movl	%eax, -20(%rbp)
	movl	-20(%rbp), %eax
	movl	%eax, %esi
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$1, -16(%rbp)
	jmp	.L4
.L8:
	movl	-16(%rbp), %eax
	addl	$1, %eax
	movl	%eax, -12(%rbp)
	jmp	.L5
.L7:
	movl	-12(%rbp), %edx
	movl	-16(%rbp), %eax
	movl	%eax, %esi
	leaq	.LC3(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	-20(%rbp), %eax
	subl	$1, %eax
	movl	%eax, -20(%rbp)
	movl	-20(%rbp), %eax
	testl	%eax, %eax
	jne	.L6
	movl	$0, %eax
	jmp	.L9
.L6:
	addl	$1, -12(%rbp)
.L5:
	movl	-24(%rbp), %eax
	cmpl	%eax, -12(%rbp)
	jle	.L7
	addl	$1, -16(%rbp)
.L4:
	movl	-24(%rbp), %eax
	cmpl	%eax, -16(%rbp)
	jle	.L8
	movl	$0, %eax
.L9:
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L10
	call	__stack_chk_fail@PLT
.L10:
	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	"%d %d"
.LC1:
	.string	"-1"
.LC2:
	.string	"%d\n"
.LC3:
	.string	"%d %d\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	-20(%rbp), %rdx
	leaq	-24(%rbp), %rax
	movq	%rax, %rsi
	leaq	.LC0(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	__isoc99_scanf@PLT
	movl	-24(%rbp), %eax
	leal	-1(%rax), %edx
	movl	-24(%rbp), %eax
	subl	$2, %eax
	imull	%edx, %eax
	movl	%eax, %edx
	shrl	$31, %edx
	addl	%edx, %eax
	sarl	%eax
	movl	%eax, %edx
	movl	-20(%rbp), %eax
	cmpl	%eax, %edx
	jge	.L2
	leaq	.LC1(%rip), %rax
	movq	%rax, %rdi
	call	puts@PLT
	movl	$0, %eax
	jmp	.L9
.L2:
	movl	-24(%rbp), %eax
	leal	-1(%rax), %edx
	movl	-24(%rbp), %eax
	imull	%edx, %eax
	movl	%eax, %edx
	shrl	$31, %edx
	addl	%edx, %eax
	sarl	%eax
	movl	-20(%rbp), %edx
	subl	%edx, %eax
	movl	%eax, -20(%rbp)
	movl	-20(%rbp), %eax
	movl	%eax, %esi
	leaq	.LC2(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	$1, -16(%rbp)
	jmp	.L4
.L8:
	movl	-16(%rbp), %eax
	addl	$1, %eax
	movl	%eax, -12(%rbp)
	jmp	.L5
.L7:
	movl	-12(%rbp), %edx
	movl	-16(%rbp), %eax
	movl	%eax, %esi
	leaq	.LC3(%rip), %rax
	movq	%rax, %rdi
	movl	$0, %eax
	call	printf@PLT
	movl	-20(%rbp), %eax
	subl	$1, %eax
	movl	%eax, -20(%rbp)
	movl	-20(%rbp), %eax
	testl	%eax, %eax
	jne	.L6
	movl	$0, %eax
	jmp	.L9
.L6:
	addl	$1, -12(%rbp)
.L5:
	movl	-24(%rbp), %eax
	cmpl	%eax, -12(%rbp)
	jle	.L7
	addl	$1, -16(%rbp)
.L4:
	movl	-24(%rbp), %eax
	cmpl	%eax, -16(%rbp)
	jle	.L8
	movl	$0, %eax
.L9:
	movq	-8(%rbp), %rdx
	subq	%fs:40, %rdx
	je	.L10
	call	__stack_chk_fail@PLT
.L10:
	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:
