user: 下面的汇编指令对应的C源代码是什么：

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x58(%rsp)
  xor    %eax,%eax
  mov    $0x0,%r14d
  mov    $0x0,%ebp
  mov    $0x0,%r12d
  mov    $0x0,%ebx
  mov    %rsp,%r15
  jmp    L46
L50:
  lea    0x30(%rsp),%rdi
  mov    %r12d,%esi
  call   <print_array@plt>
  mov    %ebx,%esi
  mov    %r15,%rdi
  call   <print_array@plt>
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    $0x0,%r14d
  mov    $0x0,%ebp
  mov    $0x0,%r12d
  mov    $0x0,%ebx
  jmp    L46
L149:
  cmp    $0x20,%al
  je     L101
  mov    %ebp,%edx
  sar    $0x1f,%edx
  shr    $0x1d,%edx
  lea    0x0(%rbp,%rdx,1),%ecx
  and    $0x7,%ecx
  sub    %ecx,%edx
  lea    0x8(%rbp,%rdx,1),%ebp
L22:
  cmp    $0x27,%r12d
  jg     L66
  movslq %r12d,%rdx
  mov    %al,0x30(%rsp,%rdx,1)
  lea    0x1(%r12),%r12d
L66:
  mov    %ebx,%esi
  mov    %r15,%rdi
  call   <print_array@plt>
  mov    $0x0,%r14d
  mov    $0x0,%ebx
L46:
  mov    $0x0,%eax
  call   <getchar@plt>
  mov    D5(%rip),%rdx
  cmp    %al,(%rdx)
  je     L82
  cmp    $0xa,%al
  je     L50
  cmp    $0x20,%al
  je     L149
  cmp    $0x9,%al
  je     L149
  add    $0x1,%ebp
  lea    0x1(%rbx),%r13d
  movslq %ebx,%rbx
  mov    %al,(%rsp,%rbx,1)
  cmp    $0x27,%ebp
  jle    L117
  cmp    $0x27,%r13d
  jg     L68
  mov    %r13d,%ebx
  mov    $0x0,%r12d
  test   %r14d,%r14d
  jne    L46
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    %r13d,%ebp
  mov    %r14d,%r12d
  jmp    L46
L101:
  add    $0x1,%ebp
  jmp    L22
L117:
  lea    0x30(%rsp),%rdi
  mov    %r12d,%esi
  call   <print_array@plt>
  mov    %r13d,%ebx
  mov    $0x0,%r12d
  jmp    L46
L68:
  mov    %r13d,%esi
  mov    %r15,%rdi
  call   <print_array@plt>
  mov    $0x1,%r14d
  mov    $0x0,%r12d
  mov    $0x0,%ebx
  jmp    L46
L82:
  lea    0x30(%rsp),%rdi
  mov    %r12d,%esi
  call   <print_array@plt>
  mov    %rsp,%rdi
  mov    %ebx,%esi
  call   <print_array@plt>
  mov    0x58(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L57
  mov    $0x0,%eax
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L57:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int main(void) {
  char c;
  char word[40];
  char blanks[40];
  int word_len, blanks_len;
  int column;
  int long_word;
  column = 0;
  word_len = 0;
  blanks_len = 0;
  long_word = 0;
  while ((c = getchar()) != EOF) {
    if (c == '\n') {
      print_array(blanks, blanks_len);
      print_array(word, word_len);
      putchar(c);
      column = 0;
      word_len = 0;
      blanks_len = 0;
      long_word = 0;
    } else if (c == ' ' || c == '\t') {
      if (c == ' ')
        ++column;
      else
        column += 8 - column % 8;
      if (blanks_len < 40)
        blanks[blanks_len++] = c;
      print_array(word, word_len);
      word_len = 0;
      long_word = 0;
    } else {
      ++column;
      word[word_len++] = c;
      if (column < 40) {
        print_array(blanks, blanks_len);
        blanks_len = 0;
      } else {
        if (word_len < 40) {
          if (!long_word) {
            putchar('\n');
            column = word_len;
          }
        } else {
          print_array(word, word_len);
          word_len = 0;
          long_word = 1;
        }
        blanks_len = 0;
      }
    }
  }
  print_array(blanks, blanks_len);
  print_array(word, word_len);
  return 0;
}
```