user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  mov    %rsi,%rbx
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  cmp    $0x1,%edi
  jle    L165
L18:
  mov    0x8(%rbx),%rdi
  lea    D17(%rip),%rsi
  call   <fopen@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L103
L110:
  xor    %ebx,%ebx
  lea    0x1d(%rsp),%r12
  nopl   0x0(%rax)
L39:
  mov    %rbp,%rcx
  mov    $0x1,%edx
  mov    $0x1,%esi
  mov    %r12,%rdi
  call   <fread@plt>
  test   %rax,%rax
  je     L22
  movzbl 0x1d(%rsp),%eax
  cmp    $0x6c,%al
  je     L207
  cmp    $0x73,%al
  je     L159
  cmp    $0x61,%al
  jne    L39
  test   %ebx,%ebx
  jle    L123
L83:
  lea    -0x1(%rbx),%r13d
  sub    $0x2,%ebx
  lea    D22(%rip),%rdi
  movslq %ebx,%rbx
  movslq %r13d,%rax
  movsbl 0x1e(%rsp,%rax,1),%edx
  movsbl 0x1e(%rsp,%rbx,1),%esi
  xor    %eax,%eax
  mov    %edx,%r14d
  mov    %esi,%r15d
  call   <printf@plt>
  lea    (%r15,%r14,1),%ecx
  mov    %cl,0x1e(%rsp,%rbx,1)
  mov    %r13d,%ebx
  jmp    L39
  nopl   0x0(%rax,%rax,1)
L159:
  test   %ebx,%ebx
  jle    L3
L80:
  lea    -0x1(%rbx),%r13d
  sub    $0x2,%ebx
  lea    D3(%rip),%rdi
  movslq %ebx,%rbx
  movslq %r13d,%rax
  movsbl 0x1e(%rsp,%rax,1),%edx
  movsbl 0x1e(%rsp,%rbx,1),%esi
  xor    %eax,%eax
  mov    %edx,%r14d
  mov    %sil,0xf(%rsp)
  call   <printf@plt>
  movzbl 0xf(%rsp),%ecx
  sub    %r14d,%ecx
  mov    %cl,0x1e(%rsp,%rbx,1)
  mov    %r13d,%ebx
  jmp    L39
  nopl   0x0(%rax)
L207:
  mov    %rbp,%rcx
  mov    $0x1,%edx
  mov    $0x1,%esi
  mov    %r12,%rdi
  call   <fread@plt>
  test   %rax,%rax
  je     L134
  cmp    $0xa,%ebx
  je     L105
L172:
  movsbl 0x1d(%rsp),%esi
  lea    D11(%rip),%rdi
  xor    %eax,%eax
  call   <printf@plt>
  movzbl 0x1d(%rsp),%edx
  movslq %ebx,%rax
  add    $0x1,%ebx
  mov    %dl,0x1e(%rsp,%rax,1)
  jmp    L39
  cs nopw 0x0(%rax,%rax,1)
L134:
  mov    $0x1,%edi
  call   <exit@plt>
  cmp    $0xa,%ebx
  jne    L172
L105:
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L172
  nopl   0x0(%rax,%rax,1)
L3:
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L80
  nop
L123:
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L83
  nop
L22:
  mov    %rbp,%rdi
  call   <fclose@plt>
  lea    -0x1(%rbx),%eax
  test   %ebx,%ebx
  je     L144
  movslq %eax,%rbx
  lea    0x1e(%rsp),%r12
  lea    D6(%rip),%rbp
  xchg   %ax,%ax
L77:
  movsbl (%r12,%rbx,1),%esi
  mov    %rbp,%rdi
  xor    %eax,%eax
  sub    $0x1,%rbx
  call   <printf@plt>
  cmp    $0xffffffff,%ebx
  jne    L77
L144:
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L99
  add    $0x38,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L165:
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L18
L103:
  mov    $0x1,%edi
  call   <exit@plt>
  jmp    L110
L99:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: tag: D17
type: string
name: unpack_data
arguments: tag: D22
type: string
name: unpack_data
arguments: tag: D3
type: string
name: unpack_data
arguments: tag: D11
type: string
name: unpack_data
arguments: tag: D6
type: string

tool: D17: r

tool: D22: debug: %d + %d


tool: D3: debug: %d - %d


tool: D11: debug: %d


tool: D6: %d


assistant: ```c
int main(int argc, char **argv) {
  FILE *in;
  char instr;
  size_t addr;
  char stack[10];
  int sp;
  if (argc < 2)
    exit(1);
  in = fopen(argv[1], "r");
  if (!in)
    exit(1);
  sp = 0;
  while (1) {
    if (fread(&instr, 1, 1, in) == 0)
      break;
    switch (instr) {
    case 'a':
      if (sp < 1)
        exit(1);
      printf("debug: %d + %d\n", (int)stack[sp - 2], (int)stack[sp - 1]);
      stack[(sp--) - 2] = stack[sp - 2] + stack[sp - 1];
      break;
    case 's':
      if (sp < 1)
        exit(1);
      printf("debug: %d - %d\n", (int)stack[sp - 2], (int)stack[sp - 1]);
      stack[(sp--) - 2] = stack[sp - 2] - stack[sp - 1];
      break;
    case 'l':
      if (fread(&instr, 1, 1, in) == 0)
        exit(1);
      if (sp == 10)
        exit(1);
      printf("debug: %d\n", (int)instr);
      stack[sp++] = instr;
      break;
    }
  }
  fclose(in);
  sp--;
  while (sp != -1)
    printf("%d\n", (int)stack[sp--]);
  return 0;
}
```