user: 请从给定的汇编指令推导出C源代码:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x48,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  lea    D47(%rip),%rax
  mov    %rax,%rsi
  lea    D30(%rip),%rax
  mov    %rax,%rdi
  call   <fopen@plt>
  mov    %rax,-0x38(%rbp)
  movl   $0x0,-0x40(%rbp)
  mov    -0x38(%rbp),%rax
  mov    %rax,%rdi
  call   <FLine@plt>
  mov    %rax,-0x30(%rbp)
  mov    -0x38(%rbp),%rax
  mov    %rax,%rdi
  call   <FLine@plt>
  mov    %rax,-0x28(%rbp)
  mov    -0x30(%rbp),%rax
  mov    $0x1,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  mov    %eax,-0x50(%rbp)
  mov    -0x28(%rbp),%rax
  mov    $0x1,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  mov    %eax,-0x4c(%rbp)
  lea    -0x4c(%rbp),%rdx
  lea    -0x50(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <checkVal@plt>
  mov    -0x50(%rbp),%eax
  mov    %eax,%esi
  lea    D41(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    -0x30(%rbp),%rax
  mov    $0x5,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  mov    %eax,%ebx
  mov    -0x28(%rbp),%rax
  mov    $0x5,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  cmp    %eax,%ebx
  jle    L61
  mov    -0x30(%rbp),%rax
  mov    $0x5,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  mov    %eax,-0x4c(%rbp)
  mov    -0x4c(%rbp),%eax
  mov    %eax,%esi
  lea    D34(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L48
L61:
  mov    -0x28(%rbp),%rax
  mov    $0x5,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  mov    %eax,-0x4c(%rbp)
  mov    -0x4c(%rbp),%eax
  mov    %eax,%esi
  lea    D34(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
L48:
  mov    -0x30(%rbp),%rax
  mov    $0x3,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  mov    %eax,-0x48(%rbp)
  mov    -0x28(%rbp),%rax
  mov    $0x3,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  mov    %eax,-0x44(%rbp)
  lea    -0x44(%rbp),%rdx
  lea    -0x48(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <checkVal@plt>
  mov    -0x48(%rbp),%eax
  mov    %eax,%esi
  lea    D19(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    -0x30(%rbp),%rax
  mov    $0x7,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  mov    %eax,%ebx
  mov    -0x28(%rbp),%rax
  mov    $0x7,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  cmp    %eax,%ebx
  jle    L13
  mov    -0x30(%rbp),%rax
  mov    $0x7,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  mov    %eax,-0x44(%rbp)
  mov    -0x44(%rbp),%eax
  mov    %eax,%esi
  lea    D93(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L12
L13:
  mov    -0x28(%rbp),%rax
  mov    $0x7,%esi
  mov    %rax,%rdi
  call   <intloc@plt>
  mov    %eax,-0x44(%rbp)
  mov    -0x44(%rbp),%eax
  mov    %eax,%esi
  lea    D93(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
L12:
  mov    -0x4c(%rbp),%eax
  mov    -0x50(%rbp),%edx
  sub    %edx,%eax
  mov    %eax,-0x3c(%rbp)
  mov    -0x48(%rbp),%edx
  mov    -0x3c(%rbp),%eax
  add    %eax,%edx
  mov    -0x44(%rbp),%eax
  cmp    %eax,%edx
  jl     L20
  mov    -0x3c(%rbp),%eax
  imul   %eax,%eax
  mov    %eax,-0x40(%rbp)
  mov    -0x40(%rbp),%eax
  mov    %eax,%esi
  lea    D66(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  jmp    L41
L20:
  mov    -0x44(%rbp),%eax
  mov    -0x48(%rbp),%edx
  sub    %edx,%eax
  mov    %eax,-0x3c(%rbp)
  mov    -0x3c(%rbp),%eax
  imul   %eax,%eax
  mov    %eax,-0x40(%rbp)
  mov    -0x40(%rbp),%eax
  mov    %eax,%esi
  lea    D66(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
L41:
  lea    D69(%rip),%rax
  mov    %rax,%rsi
  lea    D77(%rip),%rax
  mov    %rax,%rdi
  call   <fopen@plt>
  mov    %rax,-0x20(%rbp)
  mov    -0x40(%rbp),%edx
  mov    -0x20(%rbp),%rax
  lea    D56(%rip),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <fprintf@plt>
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <fclose@plt>
  mov    -0x38(%rbp),%rax
  mov    %rax,%rdi
  call   <fclose@plt>
  mov    $0x0,%eax
  mov    -0x18(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L46
  call   <__stack_chk_fail@plt>
L46:
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

tool_calls: name: extract_symbolic_data
arguments: label: D47
type_guessed: string
name: extract_symbolic_data
arguments: label: D30
type_guessed: string
name: extract_symbolic_data
arguments: label: D41
type_guessed: string
name: extract_symbolic_data
arguments: label: D34
type_guessed: string
name: extract_symbolic_data
arguments: label: D19
type_guessed: string
name: extract_symbolic_data
arguments: label: D93
type_guessed: string
name: extract_symbolic_data
arguments: label: D66
type_guessed: string
name: extract_symbolic_data
arguments: label: D69
type_guessed: string
name: extract_symbolic_data
arguments: label: D77
type_guessed: string
name: extract_symbolic_data
arguments: label: D56
type_guessed: string

tool: D47: r

tool: D30: square.in

tool: D41: Low_x: %d


tool: D34: High x: %d


tool: D19: Low Y: %d


tool: D93: High Y: %d


tool: D66: %d


tool: D69: w

tool: D77: square.out

tool: D56: %d

assistant: ```c
int main(void) {
  FILE *file = fopen("square.in", "r");
  int side;
  int area = 0;
  char *first_line = FLine(file);
  char *second_line = FLine(file);
  int low_x = intloc(first_line, 1);
  int high_x = intloc(second_line, 1);
  checkVal(&low_x, &high_x);
  printf("Low_x: %d\n", low_x);
  if (intloc(first_line, 5) > intloc(second_line, 5)) {
    high_x = intloc(first_line, 5);
    printf("High x: %d\n", high_x);
  } else {
    high_x = intloc(second_line, 5);
    printf("High x: %d\n", high_x);
  }
  int low_y = intloc(first_line, 3);
  int high_y = intloc(second_line, 3);
  checkVal(&low_y, &high_y);
  printf("Low Y: %d\n", low_y);
  if (intloc(first_line, 7) > intloc(second_line, 7)) {
    high_y = intloc(first_line, 7);
    printf("High Y: %d\n", high_y);
  } else {
    high_y = intloc(second_line, 7);
    printf("High Y: %d\n", high_y);
  }
  side = (high_x - low_x);
  if ((low_y + side) >= high_y) {
    area = side * side;
    printf("%d\n", area);
  } else {
    side = (high_y - low_y);
    area = side * side;
    printf("%d\n", area);
  }
  FILE *fWrite = fopen("square.out", "w");
  fprintf(fWrite, "%d", area);
  fclose(fWrite);
  fclose(file);
}
```