user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x678,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x668(%rsp)
  xor    %eax,%eax
  lea    D27(%rip),%rdi
  call   <printf@plt>
  lea    0x18(%rsp),%rsi
  lea    D33(%rip),%rbx
  mov    %rbx,%rdi
  call   <scanf@plt>
  lea    D38(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0x1c(%rsp),%rsi
  mov    %rbx,%rdi
  call   <scanf@plt>
  mov    0x18(%rsp),%ecx
  test   %ecx,%ecx
  jle    L58
  lea    0x74(%rsp),%rax
  mov    %rax,0x8(%rsp)
  mov    $0x1,%r12d
  lea    D37(%rip),%r15
  mov    %rbx,%r14
  jmp    L255
L198:
  mov    %ebx,%edx
  mov    %r12d,%esi
  mov    %r15,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    %rbp,%rsi
  mov    %r14,%rdi
  call   <scanf@plt>
  add    $0x1,%ebx
  add    $0x4,%rbp
  cmp    %ebx,0x1c(%rsp)
  jge    L198
L221:
  add    $0x1,%r12d
  mov    0x18(%rsp),%ecx
  addq   $0x50,0x8(%rsp)
  cmp    %r12d,%ecx
  jl     L3
L255:
  mov    0x8(%rsp),%rbp
  mov    $0x1,%ebx
  cmpl   $0x0,0x1c(%rsp)
  jg     L198
  jmp    L221
L3:
  mov    0x1c(%rsp),%edx
  add    $0x1,%edx
  js     L135
L214:
  movslq %ecx,%rax
  lea    (%rax,%rax,4),%rax
  shl    $0x4,%rax
  lea    0x20(%rsp,%rax,1),%rsi
  mov    $0x0,%eax
L56:
  movl   $0xffffffff,0x20(%rsp,%rax,4)
  movl   $0xffffffff,0x50(%rsi,%rax,4)
  add    $0x1,%rax
  cmp    %eax,%edx
  jge    L56
L135:
  test   %ecx,%ecx
  jle    L19
  lea    0x70(%rsp),%rax
  lea    -0x1(%rcx),%ecx
  lea    (%rcx,%rcx,4),%rcx
  shl    $0x4,%rcx
  lea    0xc0(%rsp,%rcx,1),%rcx
  movslq %edx,%rdx
L136:
  movl   $0xffffffff,(%rax)
  movl   $0xffffffff,(%rax,%rdx,4)
  add    $0x50,%rax
  cmp    %rcx,%rax
  jne    L136
L19:
  cmpl   $0x0,0x18(%rsp)
  jle    L210
  lea    0x70(%rsp),%r12
  mov    %r12,%r15
  mov    $0x1,%ebp
  lea    0x20(%rsp),%r14
  jmp    L231
L175:
  add    $0x1,%rbx
  cmp    %ebx,0x1c(%rsp)
  jl     L115
L227:
  mov    %ebx,%edx
  mov    %ebp,%esi
  mov    %r14,%rdi
  call   <find_position@plt>
  cmp    $0x1,%eax
  jne    L175
  add    $0x1,%r13d
  mov    %r13d,(%r15,%rbx,4)
  jmp    L175
L115:
  add    $0x1,%ebp
  mov    0x18(%rsp),%eax
  add    $0x50,%r15
  cmp    %ebp,%eax
  jl     L192
L231:
  mov    $0x1,%ebx
  cmpl   $0x0,0x1c(%rsp)
  jg     L227
  jmp    L115
L192:
  test   %eax,%eax
  jle    L210
  mov    $0x1,%r13d
  lea    D16(%rip),%rbp
  jmp    L190
L216:
  mov    (%r12,%rbx,4),%esi
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  add    $0x1,%rbx
  cmp    %ebx,0x1c(%rsp)
  jge    L216
L163:
  mov    $0xa,%edi
  call   <putchar@plt>
  add    $0x1,%r13d
  add    $0x50,%r12
  cmp    %r13d,0x18(%rsp)
  jl     L210
L190:
  mov    $0x1,%ebx
  cmpl   $0x0,0x1c(%rsp)
  jg     L216
  jmp    L163
L58:
  mov    0x1c(%rsp),%edx
  add    $0x1,%edx
  jns    L214
L210:
  mov    0x668(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L146
  mov    $0x0,%eax
  add    $0x678,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L146:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: tag: D27
type: string
name: unpack_data
arguments: tag: D33
type: string
name: unpack_data
arguments: tag: D38
type: string
name: unpack_data
arguments: tag: D37
type: string
name: unpack_data
arguments: tag: D16
type: string

tool: D27: Digite quantidade de linhas: 

tool: D33: %d

tool: D38: 
Digite a quantidade de colunas: 

tool: D37: Digite o elemento MATRIZ[%d][%d]: 

tool: D16: %d	

assistant: ```c
int main(int argc, const char *arqv[]) {
  int mat[20][20], line, col;
  int i, j, cont;
  printf("Digite quantidade de linhas: ");
  scanf("%d", &line);
  printf("\nDigite a quantidade de colunas: ");
  scanf("%d", &col);
  for (i = 1; i <= line; i++) {
    for (j = 1; j <= col; j++) {
      printf("Digite o elemento MATRIZ[%d][%d]: ", i, j);
      scanf("%d", &mat[i][j]);
    }
  }
  for (j = 0; j <= col + 1; j++) {
    mat[0][j] = -1;
    mat[line + 1][j] = -1;
  }
  for (i = 1; i <= line; i++) {
    mat[i][0] = -1;
    mat[i][col + 1] = -1;
  }
  for (i = 1; i <= line; i++) {
    for (j = 1; j <= col; j++) {
      if (find_position(mat, i, j) == 1) {
        cont++;
        mat[i][j] = cont;
      }
    }
  }
  for (i = 1; i <= line; i++) {
    for (j = 1; j <= col; j++) {
      printf("%d\t", mat[i][j]);
    }
    printf("\n");
  }
}
```