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

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  cmp    $0x1,%edi
  jg     L79
L236:
  mov    $0x25,%ecx
L129:
  mov    $0x1,%r12d
  xor    %edx,%edx
  mov    $0x1,%ebp
  mov    $0x1,%eax
  jmp    L221
  nopw   0x0(%rax,%rax,1)
L7:
  lea    0x0(%r13,%r13,1),%r14
  cmp    %rbx,%rbp
  jb     L90
  add    %r12,%rbx
  lea    0x0(%r13,%r14,1),%rax
  cmp    %rbp,%rbx
  ja     L28
  add    %r12,%rbx
  lea    0x0(%r13,%rax,1),%r14
  cmp    %rbp,%rbx
  ja     L182
  add    %r12,%rbx
  lea    (%r14,%r13,1),%rax
  cmp    %rbp,%rbx
  ja     L169
  add    %r12,%rbx
  lea    (%rax,%r13,1),%r14
  cmp    %rbx,%rbp
  jb     L96
  add    %r12,%rbx
  lea    0x0(%r13,%r14,1),%rax
  cmp    %rbx,%rbp
  jb     L59
  add    %r12,%rbx
  lea    0x0(%r13,%rax,1),%r14
  cmp    %rbx,%rbp
  jb     L12
  add    %r12,%rbx
  lea    0x0(%r13,%r14,1),%rax
  cmp    %rbx,%rbp
  jb     L152
  add    %r12,%rbx
  lea    0x0(%r13,%rax,1),%r14
  mov    $0x9,%edx
L191:
  cmp    %r14,%r15
  jae    L234
  cmp    %rax,%r15
  jae    L122
L234:
  mov    %r12,%rdx
  mov    %rbp,%rax
  mov    %r13,%r12
  mov    %r15,%rbp
L221:
  lea    (%r12,%r12,1),%rbx
  lea    (%rax,%rbp,2),%r15
  lea    (%rbx,%rdx,1),%r13
  cmp    %r12,%rbp
  jae    L7
  cmp    %r13,%r15
  jae    L234
  mov    %r12,%rbx
  mov    %r13,%r14
  xor    %edx,%edx
L122:
  sub    $0x1,%ecx
  lea    0x30(%rdx),%edi
  add    %r12,%rbp
  add    %r13,%r15
  mov    %ecx,0xc(%rsp)
  sub    %rbx,%rbp
  sub    %r14,%r15
  call   <putchar@plt>
  mov    0xc(%rsp),%ecx
  lea    0x0(%rbp,%rbp,4),%rbp
  lea    (%r15,%r15,4),%r15
  add    %rbp,%rbp
  add    %r15,%r15
  test   %ecx,%ecx
  jne    L234
  mov    $0xa,%edi
  call   <putchar@plt>
  add    $0x18,%rsp
  xor    %eax,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   (%rax)
L90:
  mov    %r13,%rax
  mov    $0x1,%edx
  jmp    L191
L28:
  mov    %rax,%rdx
  mov    %r14,%rax
  mov    %rdx,%r14
  mov    $0x2,%edx
  jmp    L191
L182:
  mov    $0x3,%edx
  jmp    L191
L169:
  xchg   %rax,%r14
  mov    $0x4,%edx
  jmp    L191
L96:
  mov    $0x5,%edx
  jmp    L191
L59:
  xchg   %rax,%r14
  mov    $0x6,%edx
  jmp    L191
L79:
  mov    0x8(%rsi),%rdi
  call   <atoi@plt>
  mov    %eax,%ecx
  test   %eax,%eax
  jg     L129
  jmp    L236
L12:
  mov    $0x7,%edx
  jmp    L191
L152:
  xchg   %rax,%r14
  mov    $0x8,%edx
  jmp    L191
```

assistant: ```c
int main(int argc, char **argv) {
  int n = 37;
  if (argc > 1) {
    n = atoi(argv[1]);
    if (n <= 0)
      n = 37;
  }
  unsigned long long p0, p1, q0, q1, r0, r1;
  p0 = p1 = q1 = 1;
  q0 = 0;
  while (n > 0) {
    r0 = p0 + (p1 << 1);
    p0 = p1;
    p1 = r0;
    r0 = q0 + (q1 << 1);
    q0 = q1;
    q1 = r0;
    int digit = 0;
    r0 = q0;
    r1 = q1;
    while (digit < 9 && r0 <= p0) {
      r0 += q0;
      r1 += q1;
      digit++;
    }
    if (r1 > p1) {
      r1 -= q1;
      if (r1 <= p1) {
        n--;
        putchar(digit + '0');
        p1 -= r1;
        r0 -= q0;
        p0 -= r0;
        p0 = ((p0 << 2) + p0) << 1;
        p1 = ((p1 << 2) + p1) << 1;
      }
    }
  }
  putchar('\n');
  return 0;
}
```