user: 请将以下的汇编代码转换成C语言代码:

```asm
<main>:
  endbr64
  push   %r13
  lea    D47(%rip),%r13
  push   %r12
  lea    D117(%rip),%r12
  push   %rbp
  lea    D139(%rip),%rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  movb   $0x30,0xf(%rsp)
  mov    $0x30,%eax
  jmp    L23
  nop
L56:
  cmp    $0x62,%al
  jne    L14
  lea    D127(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  lea    0x14(%rsp),%rdx
  lea    0x10(%rsp),%rsi
  xor    %eax,%eax
  lea    D15(%rip),%rdi
  call   <scanf@plt>
  mov    0x14(%rsp),%esi
  mov    0x10(%rsp),%edi
  call   <subtract@plt>
  lea    D70(%rip),%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <printf@plt>
L24:
  movzbl 0xf(%rsp),%eax
L23:
  lea    D2(%rip),%rbx
L14:
  cmp    $0x71,%al
  je     L128
  mov    %r13,%rdi
  call   <puts@plt>
  mov    %r12,%rdi
  call   <puts@plt>
  mov    %rbp,%rdi
  call   <puts@plt>
  mov    %rbx,%rdi
  call   <puts@plt>
  lea    D188(%rip),%rdi
  call   <puts@plt>
  lea    D91(%rip),%rdi
  call   <puts@plt>
  lea    0xf(%rsp),%rsi
  lea    D28(%rip),%rdi
  xor    %eax,%eax
  call   <scanf@plt>
  movsbl 0xf(%rsp),%esi
  lea    -0x42(%rsi),%eax
  cmp    $0x38,%al
  ja     L20
  lea    D52(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  movzbl 0xf(%rsp),%eax
  cmp    $0x63,%al
  je     L27
  jg     L66
  cmp    $0x61,%al
  jne    L56
  lea    D127(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  lea    0x14(%rsp),%rdx
  lea    0x10(%rsp),%rsi
  xor    %eax,%eax
  lea    D15(%rip),%rdi
  call   <scanf@plt>
  mov    0x14(%rsp),%esi
  mov    0x10(%rsp),%edi
  call   <add@plt>
  lea    D70(%rip),%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L24
  nopl   0x0(%rax,%rax,1)
L66:
  cmp    $0x64,%al
  jne    L14
  lea    D127(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  lea    0x10(%rsp),%rsi
  lea    0x14(%rsp),%rdx
  xor    %eax,%eax
  lea    D15(%rip),%rdi
  call   <scanf@plt>
  mov    0x14(%rsp),%esi
  test   %esi,%esi
  jne    L113
  lea    D46(%rip),%rdi
  call   <puts@plt>
  jmp    L24
  nop
L27:
  lea    D127(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  lea    0x10(%rsp),%rsi
  lea    0x14(%rsp),%rdx
  xor    %eax,%eax
  lea    D15(%rip),%rdi
  call   <scanf@plt>
  mov    0x14(%rsp),%esi
L113:
  mov    0x10(%rsp),%edi
  call   <multiply@plt>
  lea    D70(%rip),%rdi
  mov    %eax,%esi
  xor    %eax,%eax
  call   <printf@plt>
  jmp    L24
L128:
  xor    %eax,%eax
L20:
  mov    0x18(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L72
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L72:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: data_label: D47
type: string
name: extract_symbolic_data
arguments: data_label: D117
type: string
name: extract_symbolic_data
arguments: data_label: D139
type: string
name: extract_symbolic_data
arguments: data_label: D127
type: string
name: extract_symbolic_data
arguments: data_label: D15
type: string
name: extract_symbolic_data
arguments: data_label: D70
type: string
name: extract_symbolic_data
arguments: data_label: D2
type: string
name: extract_symbolic_data
arguments: data_label: D188
type: string
name: extract_symbolic_data
arguments: data_label: D91
type: string
name: extract_symbolic_data
arguments: data_label: D28
type: string
name: extract_symbolic_data
arguments: data_label: D52
type: string
name: extract_symbolic_data
arguments: data_label: D46
type: string

tool: D47: ====== Choose your option =====

tool: D117: a. Add

tool: D139: b. Subtract

tool: D127: Enter 2 nos x and y: 

tool: D15: %d%d

tool: D70: Result: %d


tool: D2: c. Multiply

tool: D188: d. Divide

tool: D91: q. Quit


tool: D28: %c

tool: D52: choice=%c


tool: D46: Error: Cannot divide by 0

assistant: ```c
int main() {
  int x, y;
  char choice = '0';
  while (choice != 'q') {
    printf("====== Choose your option =====\n");
    printf("a. Add\n");
    printf("b. Subtract\n");
    printf("c. Multiply\n");
    printf("d. Divide\n");
    printf("q. Quit\n\n");
    scanf("%c", &choice);
    if (choice < 66 || choice > 122)
      return;
    printf("choice=%c\n", choice);
    switch (choice) {
    case 'a':
      printf("Enter 2 nos x and y: ");
      scanf("%d%d", &x, &y);
      printf("Result: %d\n", add(x, y));
      break;
    case 'b':
      printf("Enter 2 nos x and y: ");
      scanf("%d%d", &x, &y);
      printf("Result: %d\n", subtract(x, y));
      break;
    case 'c':
      printf("Enter 2 nos x and y: ");
      scanf("%d%d", &x, &y);
      printf("Result: %d\n", multiply(x, y));
      break;
    case 'd':
      printf("Enter 2 nos x and y: ");
      scanf("%d%d", &x, &y);
      if (y != 0)
        printf("Result: %d\n", multiply(x, y));
      else
        printf("Error: Cannot divide by 0\n");
      break;
    case 'q':
      break;
    }
  }
  return 0;
}
```