user: 请将以下的汇编代码转换成C语言代码:

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  lea    0x24(%rsp),%rsi
  lea    D21(%rip),%rdi
  call   <scanf@plt>
  mov    0x24(%rsp),%eax
  lea    0x0(,%rax,8),%edi
  call   <malloc@plt>
  mov    %rax,%r14
  mov    0x24(%rsp),%edi
  test   %edi,%edi
  jle    L169
  mov    %rax,%rbp
  mov    $0x0,%ebx
L5:
  shl    $0x2,%edi
  call   <malloc@plt>
  mov    %rax,0x0(%rbp)
  add    $0x1,%ebx
  mov    0x24(%rsp),%edi
  add    $0x8,%rbp
  cmp    %ebx,%edi
  jg     L5
  cmp    $0xffffffff,%edi
  jl     L86
L84:
  mov    %r14,0x10(%rsp)
  movq   $0x0,0x8(%rsp)
  mov    $0x0,%r12d
  lea    D17(%rip),%rbp
  jmp    L123
L121:
  mov    %r15,%rsi
  add    0x0(%r13),%rsi
  mov    %rbp,%rdi
  call   <scanf@plt>
  add    $0x1,%ebx
  add    $0x8,%r13
  mov    0x24(%rsp),%eax
  sub    %r12d,%eax
  cmp    %ebx,%eax
  jg     L121
L24:
  lea    0x1(%r12),%r15d
  mov    %r15d,0x1c(%rsp)
  mov    0x24(%rsp),%ebx
  sub    %r12d,%ebx
  cmp    %ebx,%r15d
  jge    L47
  movslq %r15d,%r13
  shl    $0x2,%r13
L146:
  movslq %ebx,%rbx
  mov    %r13,%rsi
  add    -0x8(%r14,%rbx,8),%rsi
  mov    %rbp,%rdi
  call   <scanf@plt>
  add    $0x1,%r15d
  mov    0x24(%rsp),%ebx
  sub    %r12d,%ebx
  add    $0x4,%r13
  cmp    %r15d,%ebx
  jg     L146
L47:
  sub    $0x2,%ebx
  mov    0x8(%rsp),%rax
  mov    %eax,%r15d
  cmp    %eax,%ebx
  jl     L216
  movslq %ebx,%rax
  lea    (%r14,%rax,8),%r13
L179:
  mov    0x24(%rsp),%eax
  sub    %r12d,%eax
  cltq
  mov    0x0(%r13),%rdx
  lea    -0x4(%rdx,%rax,4),%rsi
  mov    %rbp,%rdi
  call   <scanf@plt>
  sub    $0x1,%ebx
  sub    $0x8,%r13
  cmp    %r15d,%ebx
  jge    L179
L216:
  mov    0x24(%rsp),%eax
  sub    %r12d,%eax
  lea    -0x2(%rax),%ebx
  cmp    %r15d,%ebx
  jle    L97
  mov    0x10(%rsp),%r13
  movslq %ebx,%rbx
  shl    $0x2,%rbx
  movslq %eax,%rdx
  sub    $0x3,%eax
  sub    0x8(%rsp),%eax
  sub    %rax,%rdx
  lea    -0xc(,%rdx,4),%r12
L182:
  mov    %rbx,%rsi
  add    0x0(%r13),%rsi
  mov    %rbp,%rdi
  call   <scanf@plt>
  sub    $0x4,%rbx
  cmp    %rbx,%r12
  jne    L182
L97:
  addq   $0x1,0x8(%rsp)
  addq   $0x8,0x10(%rsp)
  mov    0x24(%rsp),%edx
  mov    %edx,%eax
  shr    $0x1f,%eax
  add    %edx,%eax
  sar    %eax
  mov    0x1c(%rsp),%r12d
  cmp    %r12d,%eax
  jl     L86
L123:
  mov    0x24(%rsp),%eax
  sub    %r12d,%eax
  mov    0x8(%rsp),%rcx
  lea    0x0(,%rcx,4),%r15
  mov    0x10(%rsp),%r13
  mov    %r12d,%ebx
  cmp    %r12d,%eax
  jg     L121
  jmp    L24
L86:
  cmpl   $0x0,0x24(%rsp)
  jle    L118
  mov    $0x0,%r13d
  lea    D0(%rip),%r12
  jmp    L95
L59:
  mov    0x0(%rbp),%rax
  mov    (%rax,%rbx,4),%esi
  mov    %r12,%rdi
  call   <printf@plt>
  add    $0x1,%rbx
  cmp    %ebx,0x24(%rsp)
  jg     L59
L143:
  add    $0x1,%r13d
  add    $0x8,%r14
  cmp    %r13d,0x24(%rsp)
  jle    L118
L95:
  mov    %r14,%rbp
  mov    $0x0,%ebx
  cmpl   $0x0,0x24(%rsp)
  jg     L59
  jmp    L143
L169:
  cmpl   $0xffffffff,0x24(%rsp)
  jge    L84
L118:
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L62
  mov    $0x0,%eax
  add    $0x38,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L62:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: data_tag: D21
type_infered: string
name: read_data
arguments: data_tag: D17
type_infered: string
name: read_data
arguments: data_tag: D0
type_infered: string

tool: D21: %d

tool: D17:  %d

tool: D0: %d


assistant: ```c
int main(int argc, char const *argv[]) {
  int num, **arr, i, j;
  scanf("%d", &num);
  arr = (int **)malloc(sizeof(int *) * num);
  for (i = 0; i < num; ++i) {
    *(arr + i) = (int *)malloc(sizeof(int) * num);
  }
  for (j = 0; j <= num / 2; j++) {
    for (i = j; i < num - j; ++i) {
      scanf(" %d", &arr[i][j]);
    }
    for (i = j + 1; i < num - j; ++i) {
      scanf(" %d", &arr[num - j - 1][i]);
    }
    for (i = num - j - 2; i >= j; --i) {
      scanf(" %d", &arr[i][num - j - 1]);
    }
    for (i = num - j - 2; i >= j + 1; --i) {
      scanf(" %d", &arr[j][i]);
    }
  }
  for (i = 0; i < num; ++i) {
    for (j = 0; j < num; ++j) {
      printf("%d\n", arr[i][j]);
    }
  }
  return 0;
}
```