user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<prefixToX>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %rdi,%r13
  mov    %esi,0xc(%rsp)
  mov    $0x64,%edi
  call   <malloc@plt>
  mov    %rax,%r12
  mov    $0x64,%edi
  call   <malloc@plt>
  mov    %rax,%rbp
  mov    $0x64,%edi
  call   <malloc@plt>
  mov    %rax,0x10(%rsp)
  mov    $0x64,%edi
  call   <malloc@plt>
  mov    %rax,0x18(%rsp)
  mov    %r13,%rdi
  call   <strlen@plt>
  mov    %eax,%ebx
  sub    $0x1,%ebx
  js     L64
  movslq %ebx,%rbx
  add    %r13,%rbx
  movslq %eax,%rdx
  lea    -0x2(%r13,%rdx,1),%r14
  lea    -0x1(%rax),%eax
  sub    %rax,%r14
  lea    D18(%rip),%r13
  movabs $0x1000000000002b,%r15
  jmp    L49
L48:
  lea    D11(%rip),%rsi
  mov    %r12,%rdi
  call   <strcpy@plt>
  mov    (%rsp),%rax
  movsbl (%rax),%edx
  mov    %r13,%rsi
  mov    %rbp,%rdi
  call   <sprintf@plt>
  mov    $0x0,%eax
  call   <stackLength@plt>
  cmp    $0x1,%eax
  jle    L88
  cmpl   $0x2,0xc(%rsp)
  je     L28
  cmpl   $0x3,0xc(%rsp)
  je     L147
L109:
  sub    $0x1,%rbx
  cmp    %r14,%rbx
  je     L64
L49:
  mov    %rbx,(%rsp)
  movzbl (%rbx),%edx
  lea    -0x2a(%rdx),%eax
  cmp    $0x34,%al
  ja     L123
  bt     %rax,%r15
  jb     L48
L123:
  movsbl %dl,%edx
  mov    %r13,%rsi
  mov    %rbp,%rdi
  call   <sprintf@plt>
  mov    %rbp,%rdi
  call   <stackPush@plt>
  jmp    L109
L28:
  mov    $0x0,%eax
  call   <stackPop@plt>
  mov    %rax,%rsi
  mov    0x10(%rsp),%rdi
  call   <strcpy@plt>
  mov    $0x0,%eax
  call   <stackPop@plt>
  mov    %rax,%rsi
  mov    0x18(%rsp),%rdi
  call   <strcpy@plt>
  lea    D12(%rip),%rsi
  mov    %r12,%rdi
  call   <strcat@plt>
  mov    0x10(%rsp),%rsi
  mov    %r12,%rdi
  call   <strcat@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <strcat@plt>
  mov    0x18(%rsp),%rsi
  mov    %r12,%rdi
  call   <strcat@plt>
  lea    D28(%rip),%rsi
  mov    %r12,%rdi
  call   <strcat@plt>
  mov    %r12,%rdi
  call   <stackPush@plt>
  jmp    L109
L147:
  mov    $0x0,%eax
  call   <stackPop@plt>
  mov    %rax,%rsi
  mov    0x10(%rsp),%rdi
  call   <strcpy@plt>
  mov    $0x0,%eax
  call   <stackPop@plt>
  mov    %rax,%rsi
  mov    0x18(%rsp),%rdi
  call   <strcpy@plt>
  mov    0x10(%rsp),%rsi
  mov    %r12,%rdi
  call   <strcat@plt>
  mov    0x18(%rsp),%rsi
  mov    %r12,%rdi
  call   <strcat@plt>
  mov    %rbp,%rsi
  mov    %r12,%rdi
  call   <strcat@plt>
  mov    %r12,%rdi
  call   <stackPush@plt>
  jmp    L109
L64:
  mov    $0x0,%eax
  call   <stackLength@plt>
  mov    %eax,%edx
  lea    D3(%rip),%rax
  cmp    $0x1,%edx
  jg     L142
  cmpl   $0x2,0xc(%rsp)
  je     L136
  mov    $0x0,%eax
  call   <stackPop@plt>
  jmp    L142
L136:
  mov    $0x0,%eax
  call   <stackPop@plt>
  mov    %rax,%rdi
  call   <clearBrackets@plt>
  jmp    L142
L88:
  lea    D3(%rip),%rax
L142:
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

tool_calls: name: unpack_data
arguments: label: D18
datatype: string
name: unpack_data
arguments: label: D11
datatype: string
name: unpack_data
arguments: label: D12
datatype: string
name: unpack_data
arguments: label: D28
datatype: string
name: unpack_data
arguments: label: D3
datatype: string

tool: D18: %c

tool: 

tool: D12: (

tool: D28: )

tool: D3: Invalid infix string. Check your operators and operands.


assistant: ```c
char *prefixToX(char *s, int outputFormat) {
  int i;
  char *out = (char *)malloc(sizeof(char) * 100);
  char *buffer = (char *)malloc(sizeof(char) * 100);
  char *stringA = (char *)malloc(sizeof(char) * 100);
  char *stringB = (char *)malloc(sizeof(char) * 100);
  for (i = strlen(s) - 1; i >= 0; i--) {
    switch (s[i]) {
    case '^':
    case '/':
    case '*':
    case '+':
    case '-':
      strcpy(out, "");
      sprintf(buffer, "%c", s[i]);
      if (stackLength() < 2) {
        return "Invalid infix string. Check your operators and operands.\n";
      } else {
        if (outputFormat == 2) {
          strcpy(stringA, stackPop());
          strcpy(stringB, stackPop());
          strcat(out, "(");
          strcat(out, stringA);
          strcat(out, buffer);
          strcat(out, stringB);
          strcat(out, ")");
          stackPush(out);
        } else if (outputFormat == 3) {
          strcpy(stringA, stackPop());
          strcpy(stringB, stackPop());
          strcat(out, stringA);
          strcat(out, stringB);
          strcat(out, buffer);
          stackPush(out);
        }
      }
      break;
    default:
      sprintf(buffer, "%c", s[i]);
      stackPush(buffer);
      break;
    }
  }
  if (stackLength() > 1) {
    return "Invalid infix string. Check your operators and operands.\n";
  } else {
    if (outputFormat == 2)
      return clearBrackets(stackPop());
    else
      return stackPop();
  }
}
```