user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<main>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x58(%rsp)
  xor    %eax,%eax
  movl   $0x9,(%rsp)
  movl   $0x7,0x4(%rsp)
  movl   $0x1,0x8(%rsp)
  movl   $0x0,0xc(%rsp)
  lea    D37(%rip),%rax
  mov    %rax,0x10(%rsp)
  lea    D23(%rip),%rcx
  mov    %rcx,0x18(%rsp)
  mov    %rax,0x20(%rsp)
  mov    %rax,0x28(%rsp)
  lea    D22(%rip),%rdi
  mov    %rdi,0x30(%rsp)
  lea    D27(%rip),%rcx
  mov    %rcx,0x38(%rsp)
  mov    %rax,0x40(%rsp)
  lea    D14(%rip),%rax
  mov    %rax,0x48(%rsp)
  mov    $0x0,%ebx
  lea    0x30(%rsp),%rbp
L7:
  lea    0x10(%rsp),%rdx
  mov    %rsp,%rsi
  mov    %rbp,%rcx
  mov    %ebx,%edi
  call   <call_mul_digit_string@plt>
  add    $0x1,%ebx
  cmp    $0x4,%ebx
  jne    L7
  mov    0x58(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L15
  mov    $0x0,%eax
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  ret
L15:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: label: D37
type_guessed: string
name: read_data
arguments: label: D23
type_guessed: string
name: read_data
arguments: label: D22
type_guessed: string
name: read_data
arguments: label: D27
type_guessed: string
name: read_data
arguments: label: D14
type_guessed: string

tool: D37: 75415123591065981965009485944457939790477550112631613307953910218357656560185790391063809273661832958588846804708867683435301180538880000000000000000000000

tool: D23: 848420140399492297106356716875151822642872438767105649714481489956523636302090141899467854328695620784124526552974761438647138281062400000000000000000000000

tool: D22: 678736112319593837685085373500121458114297951013684519771585191965218909041672113519574283462956496627299621242379809150917710624849920000000000000000000000

tool: D27: 5938940982796446079744497018126062758500107071369739548001370429695665454114630993296274980300869345488871685870823330070529967967436800000000000000000000000

tool: D14: 0

assistant: ```c
int main() {
  const int scalars[4] = {9, 7, 1, 0};
  const char *numeric_input[4] = {"75415123591065981965009485944457939790477550112631613307953910218357656560185790391063809273661832958588846804708867683435301180538880000000000000000000000", "848420140399492297106356716875151822642872438767105649714481489956523636302090141899467854328695620784124526552974761438647138281062400000000000000000000000", "75415123591065981965009485944457939790477550112631613307953910218357656560185790391063809273661832958588846804708867683435301180538880000000000000000000000", "75415123591065981965009485944457939790477550112631613307953910218357656560185790391063809273661832958588846804708867683435301180538880000000000000000000000"};
  const char *numeric_output[4] = {"678736112319593837685085373500121458114297951013684519771585191965218909041672113519574283462956496627299621242379809150917710624849920000000000000000000000", "5938940982796446079744497018126062758500107071369739548001370429695665454114630993296274980300869345488871685870823330070529967967436800000000000000000000000", "75415123591065981965009485944457939790477550112631613307953910218357656560185790391063809273661832958588846804708867683435301180538880000000000000000000000", "0"};
  int i;
  for (i = 0; i < 4; ++i)
    call_mul_digit_string(i, scalars, numeric_input, numeric_output);
  return (0);
}
```