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

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  lea    -0xf4000(%rsp),%r11
L103:
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  cmp    %r11,%rsp
  jne    L103
  sub    $0x278,%rsp
  lea    D8(%rip),%rbp
  xor    %r13d,%r13d
  xor    %r12d,%r12d
  mov    %rbp,%rdi
  mov    %fs:0x28,%rax
  mov    %rax,0xf4268(%rsp)
  xor    %eax,%eax
  lea    0x1c(%rsp),%rsi
  lea    0x20(%rsp),%r14
  call   <scanf@plt>
  mov    $0x3d090,%edx
  mov    $0xffffffff,%esi
  mov    %r14,%rdi
  call   <memset@plt>
  mov    0x1c(%rsp),%eax
  test   %eax,%eax
  jle    L94
  nopw   0x0(%rax,%rax,1)
L89:
  lea    (%r14,%r13,4),%r15
  xor    %ebx,%ebx
  cs nopw 0x0(%rax,%rax,1)
L77:
  mov    %r15,%rsi
  mov    %rbp,%rdi
  add    $0x1,%ebx
  add    $0x4,%r15
  call   <scanf@plt>
  mov    0x1c(%rsp),%edx
  cmp    %ebx,%edx
  jg     L77
  add    $0x1,%r12d
  add    $0x1f4,%r13
  cmp    %r12d,%edx
  jle    L271
  test   %edx,%edx
  jg     L89
L94:
  movl   $0x0,0xc(%rsp)
L202:
  mov    0xc(%rsp),%esi
  lea    D0(%rip),%rdi
  call   <printf@plt>
  mov    0xf4268(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L16
  add    $0xf4278,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L16:
  call   <__stack_chk_fail@plt>
L271:
  test   %edx,%edx
  jle    L94
  mov    %r14,%rcx
  mov    $0xffffffff,%r15d
  lea    -0x2(%rdx),%r14d
  xor    %r11d,%r11d
  movl   $0x0,0xc(%rsp)
  xor    %r13d,%r13d
  lea    -0x1(%rdx),%ebp
  nopl   0x0(%rax)
L156:
  mov    %r15d,%esi
  mov    %r14d,%eax
  mov    $0xfffffffffffff830,%rbx
  mov    %rcx,%r9
  add    $0x1,%rax
  add    $0x1,%r13d
  mov    $0x1,%edi
  xor    %r8d,%r8d
  imul   $0x7d0,%rsi,%rsi
  mov    $0xffffffffffffffff,%r10
  imul   $0x7d0,%rax,%r12
  sub    %rsi,%rbx
  mov    %rbx,(%rsp)
  nopl   0x0(%rax)
L75:
  test   %r11,%r11
  je     L63
  test   %r8d,%r8d
  sete   %al
  cmp    %r11d,%ebp
  sete   %sil
  or     %sil,%al
  jne    L63
  cmp    %r8d,%ebp
  je     L63
  cmpl   $0x1,(%r9)
  je     L63
  mov    %r10,%rax
  nopl   (%rax)
L137:
  mov    (%rcx,%rax,4),%esi
  cmp    $0x1,%esi
  je     L67
  sub    $0x1,%rax
  cmp    $0xffffffff,%eax
  jne    L137
  xor    %esi,%esi
L67:
  mov    %edi,0x8(%rsp)
  cmp    %edi,%edx
  jle    L19
  mov    %rdi,%rax
  jmp    L237
L263:
  add    $0x1,%rax
  cmp    %eax,%edx
  jle    L19
L237:
  cmpl   $0x1,(%rcx,%rax,4)
  jne    L263
  add    $0x1,%esi
L19:
  mov    (%rsp),%rax
  lea    (%rax,%r9,1),%rbx
  mov    %r9,%rax
  nopl   0x0(%rax)
L47:
  cmpl   $0x1,-0x7d0(%rax)
  je     L233
  sub    $0x7d0,%rax
  cmp    %rbx,%rax
  jne    L47
  cmp    %r13d,%edx
  jle    L56
L154:
  lea    (%r12,%r9,1),%rbx
  mov    %r9,%rax
  jmp    L124
  nopw   0x0(%rax,%rax,1)
L142:
  add    $0x7d0,%rax
  cmp    %rbx,%rax
  je     L63
L124:
  cmpl   $0x1,0x7d0(%rax)
  jne    L142
  xor    %eax,%eax
  cmp    $0x3,%esi
  sete   %al
  add    %eax,0xc(%rsp)
L63:
  cmp    %edi,%edx
  jle    L278
L186:
  add    $0x1,%r8d
  add    $0x4,%r9
  add    $0x1,%r10
  add    $0x1,%rdi
  jmp    L75
  nopl   0x0(%rax)
L278:
  add    $0x1,%r11
  add    $0x7d0,%rcx
  add    $0x1,%r15d
  sub    $0x1,%r14d
  cmp    %r13d,%edx
  jne    L156
  jmp    L202
  nopl   0x0(%rax)
L233:
  add    $0x1,%esi
  cmp    %r13d,%edx
  jg     L154
L56:
  cmp    0x8(%rsp),%edx
  jg     L186
  jmp    L202
```

tool_calls: name: retrieve_data
arguments: data_label: D8
data_type: string
name: retrieve_data
arguments: data_label: D0
data_type: string

tool: D8: %d

tool: D0: %d


assistant: ```c
int main() {
  int n, i, j, k, flag, out;
  int map[500][500];
  scanf("%d", &n);
  memset(map, -1, 500 * 500);
  out = 0;
  for (i = 0; i < n; i++)
    for (j = 0; j < n; j++)
      scanf("%d", &map[i][j]);
  for (i = 0; i < n; i++) {
    for (j = 0; j < n; j++) {
      if (i == 0 || i == n - 1 || j == 0 || j == n - 1)
        continue;
      if (map[i][j] == 1)
        continue;
      flag = 0;
      for (k = j - 1; k >= 0; k--) {
        if (map[i][k] == 1) {
          flag++;
          break;
        }
      }
      for (k = j + 1; k < n; k++) {
        if (map[i][k] == 1) {
          flag++;
          break;
        }
      }
      for (k = i - 1; k >= 0; k--) {
        if (map[k][j] == 1) {
          flag++;
          break;
        }
      }
      for (k = i + 1; k < n; k++) {
        if (map[k][j] == 1) {
          flag++;
          break;
        }
      }
      if (flag == 4)
        out++;
    }
  }
  printf("%d\n", out);
  return 0;
}
```