user: Converte this assembly snippet into its equivalent C code:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  mov    %rsp,%rax
  mov    %rax,%rbx
  lea    D16(%rip),%rax
  mov    %rax,%rsi
  lea    D23(%rip),%rax
  mov    %rax,%rdi
  call   <fopen@plt>
  mov    %rax,-0x50(%rbp)
  cmpq   $0x0,-0x50(%rbp)
  jne    L70
  mov    $0x0,%eax
  mov    %rbx,%rsp
  mov    -0x38(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L86
  jmp    L29
L70:
  movl   $0x6,-0x54(%rbp)
  mov    $0x0,%edi
  call   <time@plt>
  mov    %eax,%edi
  call   <srand@plt>
  mov    -0x54(%rbp),%eax
  movslq %eax,%rdx
  sub    $0x1,%rdx
  mov    %rdx,-0x48(%rbp)
  movslq %eax,%rdx
  mov    %rdx,%r14
  mov    $0x0,%r15d
  movslq %eax,%rdx
  mov    %rdx,%r12
  mov    $0x0,%r13d
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    $0x10,%eax
  sub    $0x1,%rax
  add    %rdx,%rax
  mov    $0x10,%ebx
  mov    $0x0,%edx
  div    %rbx
  imul   $0x10,%rax,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffff000,%rcx
  mov    %rsp,%rdx
  sub    %rcx,%rdx
L88:
  cmp    %rdx,%rsp
  je     L69
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L88
L69:
  mov    %rax,%rdx
  and    $0xfff,%edx
  sub    %rdx,%rsp
  mov    %rax,%rdx
  and    $0xfff,%edx
  test   %rdx,%rdx
  je     L87
  and    $0xfff,%eax
  sub    $0x8,%rax
  add    %rsp,%rax
  orq    $0x0,(%rax)
L87:
  mov    %rsp,%rax
  add    $0x3,%rax
  shr    $0x2,%rax
  shl    $0x2,%rax
  mov    %rax,-0x40(%rbp)
  movl   $0x0,-0x58(%rbp)
  jmp    L9
L57:
  mov    $0x0,%eax
  call   <rand@plt>
  movslq %eax,%rdx
  imul   $0x51eb851f,%rdx,%rdx
  shr    $0x20,%rdx
  sar    $0x4,%edx
  mov    %eax,%ecx
  sar    $0x1f,%ecx
  sub    %ecx,%edx
  imul   $0x32,%edx,%ecx
  sub    %ecx,%eax
  mov    %eax,%edx
  lea    0x1(%rdx),%ecx
  mov    -0x40(%rbp),%rax
  mov    -0x58(%rbp),%edx
  movslq %edx,%rdx
  mov    %ecx,(%rax,%rdx,4)
  mov    -0x40(%rbp),%rax
  mov    -0x58(%rbp),%edx
  movslq %edx,%rdx
  mov    (%rax,%rdx,4),%ecx
  mov    -0x58(%rbp),%edx
  mov    -0x50(%rbp),%rax
  lea    D5(%rip),%rsi
  mov    %rax,%rdi
  call   <fprintf@plt>
  addl   $0x1,-0x58(%rbp)
L9:
  mov    -0x58(%rbp),%eax
  cmp    -0x54(%rbp),%eax
  jl     L57
  mov    -0x50(%rbp),%rax
  mov    %rax,%rdi
  call   <fclose@plt>
  movl   $0x0,-0x58(%rbp)
L71:
  mov    -0x40(%rbp),%rax
  mov    (%rax),%eax
  mov    -0x58(%rbp),%edx
  mov    %edx,%esi
  mov    %eax,%ecx
  sar    %cl,%esi
  mov    -0x40(%rbp),%rax
  mov    0x4(%rax),%eax
  mov    -0x58(%rbp),%edx
  mov    %eax,%ecx
  sar    %cl,%edx
  mov    %edx,%eax
  or     %esi,%eax
  imul   -0x58(%rbp),%eax
  mov    %eax,%edx
  mov    -0x40(%rbp),%rax
  mov    0x8(%rax),%eax
  mov    %edx,%esi
  and    %eax,%esi
  mov    -0x40(%rbp),%rax
  mov    0xc(%rax),%eax
  mov    -0x58(%rbp),%edx
  mov    %eax,%ecx
  sar    %cl,%edx
  mov    %edx,%eax
  mov    %esi,%edi
  and    %eax,%edi
  mov    -0x40(%rbp),%rax
  mov    0x10(%rax),%eax
  mov    -0x58(%rbp),%edx
  mov    %eax,%ecx
  sar    %cl,%edx
  mov    %edx,%eax
  and    -0x58(%rbp),%eax
  mov    %eax,%esi
  mov    -0x40(%rbp),%rax
  mov    0x14(%rax),%eax
  mov    -0x58(%rbp),%edx
  mov    %eax,%ecx
  sar    %cl,%edx
  mov    %edx,%eax
  or     %esi,%eax
  xor    %edi,%eax
  mov    %eax,%edi
  call   <putchar@plt>
  addl   $0x1,-0x58(%rbp)
  jmp    L71
L29:
  call   <__stack_chk_fail@plt>
L86:
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
```

tool_calls: name: disassemble_data
arguments: data_tag: D16
type_guessed: string
name: disassemble_data
arguments: data_tag: D23
type_guessed: string
name: disassemble_data
arguments: data_tag: D5
type_guessed: string

tool: D16: w

tool: D23: lastSong.txt

tool: D5: a[%d]: %d


assistant: ```c
int main() {
  FILE *f = fopen("lastSong.txt", "w");
  if (f == NULL)
    return 0;
  int num = 6;
  srand(time(NULL));
  int a[num];
  int i;
  for (i = 0; i < num; i++) {
    a[i] = rand() % 50 + 1;
    fprintf(f, "a[%d]: %d\n", i, a[i]);
  }
  fclose(f);
  for (i = 0;; i++) {
    putchar(((i * (i >> a[0] | i >> a[1]) & a[2] & i >> a[3])) ^ (i & i >> a[4] | i >> a[5]));
  }
  return 0;
}
```