user: What would the C source look like for the assembly code provided here?

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    $0x0,%edi
  call   <factorial@plt>
  mov    %eax,%esi
  lea    D174(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <factorial@plt>
  mov    %eax,%esi
  lea    D104(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x2,%edi
  call   <factorial@plt>
  mov    %eax,%esi
  lea    D12(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x3,%edi
  call   <factorial@plt>
  mov    %eax,%esi
  lea    D151(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x4,%edi
  call   <factorial@plt>
  mov    %eax,%esi
  lea    D196(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x5,%edi
  call   <factorial@plt>
  mov    %eax,%esi
  lea    D37(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x6,%edi
  call   <factorial@plt>
  mov    %eax,%esi
  lea    D19(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0xa,%edi
  call   <factorial@plt>
  mov    %eax,%esi
  lea    D111(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x14,%edi
  call   <factorial@plt>
  mov    %eax,%esi
  lea    D76(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x1e,%edi
  call   <factorial@plt>
  mov    %eax,%esi
  lea    D50(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%edi
  call   <factorial_iterative@plt>
  mov    %eax,%esi
  lea    D143(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x1,%edi
  call   <factorial_iterative@plt>
  mov    %eax,%esi
  lea    D39(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x2,%edi
  call   <factorial_iterative@plt>
  mov    %eax,%esi
  lea    D15(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x3,%edi
  call   <factorial_iterative@plt>
  mov    %eax,%esi
  lea    D190(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x4,%edi
  call   <factorial_iterative@plt>
  mov    %eax,%esi
  lea    D95(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x5,%edi
  call   <factorial_iterative@plt>
  mov    %eax,%esi
  lea    D21(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x6,%edi
  call   <factorial_iterative@plt>
  mov    %eax,%esi
  lea    D100(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0xa,%edi
  call   <factorial_iterative@plt>
  mov    %eax,%esi
  lea    D8(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x14,%edi
  call   <factorial_iterative@plt>
  mov    %eax,%esi
  lea    D172(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x1e,%edi
  call   <factorial_iterative@plt>
  mov    %eax,%esi
  lea    D177(%rip),%rax
  mov    %rax,%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  pop    %rbp
  ret
```

tool_calls: name: unpack_data
arguments: tag: D174
datatype: string
name: unpack_data
arguments: tag: D104
datatype: string
name: unpack_data
arguments: tag: D12
datatype: string
name: unpack_data
arguments: tag: D151
datatype: string
name: unpack_data
arguments: tag: D196
datatype: string
name: unpack_data
arguments: tag: D37
datatype: string
name: unpack_data
arguments: tag: D19
datatype: string
name: unpack_data
arguments: tag: D111
datatype: string
name: unpack_data
arguments: tag: D76
datatype: string
name: unpack_data
arguments: tag: D50
datatype: string
name: unpack_data
arguments: tag: D143
datatype: string
name: unpack_data
arguments: tag: D39
datatype: string
name: unpack_data
arguments: tag: D15
datatype: string
name: unpack_data
arguments: tag: D190
datatype: string
name: unpack_data
arguments: tag: D95
datatype: string
name: unpack_data
arguments: tag: D21
datatype: string
name: unpack_data
arguments: tag: D100
datatype: string
name: unpack_data
arguments: tag: D8
datatype: string
name: unpack_data
arguments: tag: D172
datatype: string
name: unpack_data
arguments: tag: D177
datatype: string

tool: D174: factorial of 0 is %llu


tool: D104: factorial of 1 is %llu


tool: D12: factorial of 2 is %llu


tool: D151: factorial of 3 is %llu


tool: D196: factorial of 4 is %llu


tool: D37: factorial of 5 is %llu


tool: D19: factorial of 6 is %llu


tool: D111: factorial of 10 is %llu


tool: D76: factorial of 20 is %llu


tool: D50: factorial of 30 is %llu


tool: D143: factorial_iterative of 0 is %llu


tool: D39: factorial_iterative of 1 is %llu


tool: D15: factorial_iterative of 2 is %llu


tool: D190: factorial_iterative of 3 is %llu


tool: D95: factorial_iterative of 4 is %llu


tool: D21: factorial_iterative of 5 is %llu


tool: D100: factorial_iterative of 6 is %llu


tool: D8: factorial_iterative of 10 is %llu


tool: D172: factorial_iterative of 20 is %llu


tool: D177: factorial_iterative of 30 is %llu


assistant: ```c
int main() {
  printf("factorial of 0 is %llu\n", factorial(0));
  printf("factorial of 1 is %llu\n", factorial(1));
  printf("factorial of 2 is %llu\n", factorial(2));
  printf("factorial of 3 is %llu\n", factorial(3));
  printf("factorial of 4 is %llu\n", factorial(4));
  printf("factorial of 5 is %llu\n", factorial(5));
  printf("factorial of 6 is %llu\n", factorial(6));
  printf("factorial of 10 is %llu\n", factorial(10));
  printf("factorial of 20 is %llu\n", factorial(20));
  printf("factorial of 30 is %llu\n", factorial(30));
  printf("factorial_iterative of 0 is %llu\n", factorial_iterative(0));
  printf("factorial_iterative of 1 is %llu\n", factorial_iterative(1));
  printf("factorial_iterative of 2 is %llu\n", factorial_iterative(2));
  printf("factorial_iterative of 3 is %llu\n", factorial_iterative(3));
  printf("factorial_iterative of 4 is %llu\n", factorial_iterative(4));
  printf("factorial_iterative of 5 is %llu\n", factorial_iterative(5));
  printf("factorial_iterative of 6 is %llu\n", factorial_iterative(6));
  printf("factorial_iterative of 10 is %llu\n", factorial_iterative(10));
  printf("factorial_iterative of 20 is %llu\n", factorial_iterative(20));
  printf("factorial_iterative of 30 is %llu\n", factorial_iterative(30));
  return 0;
}
```