user: Please show me the C implementation that matches the assembly code listed below:

```asm
<main>:
  endbr64
  push   %r14
  mov    $0x54,%ecx
  push   %r13
  lea    D23(%rip),%r13
  push   %r12
  push   %rbp
  push   %rbx
  lea    D37(%rip),%rbx
  sub    $0x2c0,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x2b8(%rsp)
  xor    %eax,%eax
  lea    0x10(%rsp),%rbp
  movl   $0xffffffff,0xc(%rsp)
  lea    0xc(%rsp),%r12
  mov    %rbp,%rdi
  rep stos %rax,%es:(%rdi)
  movl   $0x0,(%rdi)
  nopw   0x0(%rax,%rax,1)
L98:
  mov    %r13,%rdi
  xor    %eax,%eax
  call   <printf@plt>
  mov    %r12,%rsi
  mov    %rbx,%rdi
  call   <scanf@plt>
  mov    0xc(%rsp),%eax
  lea    -0x1(%rax),%esi
  cmp    $0xc,%esi
  ja     L98
  test   $0x1,%al
  je     L98
  mov    %eax,%r10d
  mov    $0x2,%ecx
  xor    %r9d,%r9d
  sar    %r10d
  movslq %r10d,%rdx
  movl   $0x1,0x10(%rsp,%rdx,4)
  mov    %eax,%edx
  imul   %eax,%edx
  lea    0x1(%rdx),%r11d
  cmp    $0x1,%edx
  jne    L88
  jmp    L12
  xchg   %ax,%ax
L15:
  mov    %ecx,(%rdi)
  add    $0x1,%ecx
  mov    %r8d,%r10d
  mov    %edx,%r9d
  cmp    %r11d,%ecx
  je     L12
L88:
  lea    0x1(%r10),%r8d
  lea    -0x1(%r9),%edx
  movslq %r8d,%rbx
  cmp    %r8d,%eax
  jg     L55
  xor    %ebx,%ebx
  xor    %r8d,%r8d
L55:
  cmp    $0xffffffff,%edx
  cmove  %esi,%edx
  movslq %edx,%rdi
  lea    (%rdi,%rdi,2),%r12
  lea    (%rdi,%r12,4),%rdi
  add    %rbx,%rdi
  lea    0x0(%rbp,%rdi,4),%rdi
  mov    (%rdi),%ebx
  test   %ebx,%ebx
  je     L15
  add    $0x1,%r9d
  movslq %r10d,%r8
  cmp    %r10d,%eax
  jg     L40
  xor    %r8d,%r8d
  xor    %r10d,%r10d
L40:
  movslq %r9d,%rdx
  lea    (%rdx,%rdx,2),%rdi
  lea    (%rdx,%rdi,4),%rdx
  add    %r8,%rdx
  mov    %ecx,0x10(%rsp,%rdx,4)
  add    $0x1,%ecx
  cmp    %r11d,%ecx
  jne    L88
L12:
  xor    %r13d,%r13d
  lea    D6(%rip),%r12
  lea    D29(%rip),%r14
  nopl   0x0(%rax)
L16:
  xor    %ebx,%ebx
  nopw   0x0(%rax,%rax,1)
L14:
  mov    0x0(%rbp,%rbx,4),%esi
  mov    %r12,%rdi
  xor    %eax,%eax
  add    $0x1,%rbx
  call   <printf@plt>
  cmp    %ebx,0xc(%rsp)
  jg     L14
  mov    %r14,%rdi
  add    $0x1,%r13d
  add    $0x34,%rbp
  call   <puts@plt>
  cmp    %r13d,0xc(%rsp)
  jg     L16
  mov    0x2b8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L94
  add    $0x2c0,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
L94:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: data_tag: D23
datatype: string
name: unpack_data
arguments: data_tag: D37
datatype: string
name: unpack_data
arguments: data_tag: D6
datatype: string
name: unpack_data
arguments: data_tag: D29
datatype: string

tool: D23: Please enter an odd positive integer between 1 and 13 (size of magic square):

tool: D37: %d

tool: D6: %6d 

tool: D29: 


assistant: ```c
int main(void) {
  int n = -1;
  int row = 0, column = 0, oldcol = 0, oldrow = 0;
  int msquare[13][13] = {0};
  while ((n < 1) || (n > 13) || (n % 2 == 0)) {
    printf("Please enter an odd positive integer between 1 and 13 (size of magic square):");
    scanf("%d", &n);
  }
  row = 0;
  column = n / 2;
  *((*(msquare + row)) + column) = 1;
  for (int i = 2; i <= (n * n); i++) {
    oldcol = column;
    oldrow = row;
    column++;
    row--;
    if (column >= n) {
      column = 0;
    }
    if (row < 0) {
      row = (n - 1);
    }
    if ((*((*(msquare + row)) + column)) == 0) {
      *((*(msquare + row)) + column) = i;
    } else {
      row = oldrow + 1;
      column = oldcol;
      if (column >= n) {
        column = 0;
      }
      if (row < 0) {
        row = (n - 1);
      }
      *((*(msquare + row)) + column) = i;
    }
  }
  for (int a = 0; a < n; a++) {
    for (int b = 0; b < n; b++) {
      printf("%6d ", *((*(msquare + a)) + b));
    }
    printf("\n\n");
  }
  return 0;
}
```