user: Demonstrate the C code that generates the assembly output below:

```asm
<infixToPostfix>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%r15
  call   <strlen@plt>
  mov    %eax,%edi
  call   <createStack@plt>
  test   %rax,%rax
  je     L36
  mov    %rax,%rbx
  movzbl (%r15),%edi
  test   %dil,%dil
  je     L3
  mov    %r15,%r14
  mov    $0xffffffff,%r13d
  jmp    L104
L44:
  movzbl (%r14),%eax
  cmp    $0x28,%al
  je     L49
  movslq %r13d,%rbp
  cmp    $0x29,%al
  jne    L87
  movslq %r13d,%rbp
  jmp    L148
L49:
  mov    $0x28,%esi
  mov    %rbx,%rdi
  call   <push@plt>
  jmp    L161
L63:
  mov    %rbx,%rdi
  call   <pop@plt>
  mov    %al,(%r15,%rbp,1)
L148:
  mov    %ebp,%r13d
  mov    %rbx,%rdi
  call   <isEmpty@plt>
  test   %eax,%eax
  jne    L168
  mov    %rbx,%rdi
  call   <peek@plt>
  add    $0x1,%rbp
  cmp    $0x28,%al
  jne    L63
L168:
  mov    %rbx,%rdi
  call   <isEmpty@plt>
  test   %eax,%eax
  jne    L164
  mov    %rbx,%rdi
  call   <peek@plt>
  cmp    $0x28,%al
  jne    L130
L164:
  mov    %rbx,%rdi
  call   <pop@plt>
  jmp    L161
L48:
  mov    %rbx,%rdi
  call   <pop@plt>
  mov    %al,(%r15,%rbp,1)
L87:
  mov    %ebp,%r13d
  mov    %rbx,%rdi
  call   <isEmpty@plt>
  test   %eax,%eax
  jne    L92
  movsbl (%r14),%edi
  call   <Prec@plt>
  mov    %rax,%r12
  mov    %rbx,%rdi
  call   <peek@plt>
  movsbl %al,%edi
  call   <Prec@plt>
  add    $0x1,%rbp
  cmp    %rax,%r12
  jle    L48
L92:
  movsbl (%r14),%esi
  mov    %rbx,%rdi
  call   <push@plt>
L161:
  add    $0x1,%r14
  movzbl (%r14),%edi
  test   %dil,%dil
  je     L167
L104:
  movsbl %dil,%edi
  call   <isOperand@plt>
  test   %rax,%rax
  je     L44
  add    $0x1,%r13d
  movzbl (%r14),%edx
  movslq %r13d,%rax
  mov    %dl,(%r15,%rax,1)
  jmp    L161
L3:
  mov    $0xffffffff,%r13d
L167:
  movslq %r13d,%r13
  jmp    L33
L28:
  mov    %rbx,%rdi
  call   <pop@plt>
  mov    %al,(%r15,%r13,1)
L33:
  mov    %r13d,%ebp
  mov    %rbx,%rdi
  call   <isEmpty@plt>
  add    $0x1,%r13
  test   %eax,%eax
  je     L28
  add    $0x1,%ebp
  movslq %ebp,%rbp
  movb   $0x0,(%r15,%rbp,1)
  mov    %r15,%rsi
  lea    D1(%rip),%rdi
  call   <printf@plt>
  mov    $0x0,%eax
L126:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L36:
  mov    $0xffffffff,%eax
  jmp    L126
L130:
  mov    $0xffffffff,%eax
  jmp    L126
```

tool_calls: name: unpack_data
arguments: data_tag: D1
type_guessed: string

tool: D1: %sn

assistant: ```c
int infixToPostfix(char *exp) {
  int i, k;
  struct Stack *stack = createStack(strlen(exp));
  if (!stack)
    return -1;
  for (i = 0, k = -1; exp[i]; ++i) {
    if (isOperand(exp[i]))
      exp[++k] = exp[i];
    else if (exp[i] == '(')
      push(stack, exp[i]);
    else if (exp[i] == ')') {
      while (!isEmpty(stack) && peek(stack) != '(')
        exp[++k] = pop(stack);
      if (!isEmpty(stack) && peek(stack) != '(')
        return -1;
      else
        pop(stack);
    } else {
      while (!isEmpty(stack) && Prec(exp[i]) <= Prec(peek(stack)))
        exp[++k] = pop(stack);
      push(stack, exp[i]);
    }
  }
  while (!isEmpty(stack))
    exp[++k] = pop(stack);
  exp[++k] = '\0';
  printf("%sn", exp);
  return 0;
}
```