user: 请将以下的汇编代码转换成C语言代码:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  sub    $0x10,%rsp
  mov    %edi,-0x24(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    $0x0,%r13d
  mov    $0x0,%r14d
  cmpl   $0x1,-0x24(%rbp)
  jle    L18
  addq   $0x8,-0x30(%rbp)
  mov    -0x30(%rbp),%rax
  mov    (%rax),%rax
  mov    %rax,%rdi
  call   <getn@plt>
  mov    %eax,%r13d
L18:
  cmpl   $0x2,-0x24(%rbp)
  jle    L171
  addq   $0x8,-0x30(%rbp)
  mov    -0x30(%rbp),%rax
  mov    (%rax),%rax
  mov    %rax,%rdi
  call   <getn@plt>
  mov    %eax,%r14d
  jmp    L120
L171:
  nop
L120:
  mov    $0x0,%ebx
L219:
  mov    D3(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <getc@plt>
  movsbl %al,%r12d
  mov    D3(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <feof@plt>
  test   %rax,%rax
  jne    L123
  cmp    $0x9,%r12d
  jne    L185
  lea    0x8(%rbx),%eax
  and    $0xfffffff8,%eax
  mov    %eax,%ebx
  jmp    L262
L185:
  cmp    $0x8,%r12d
  jne    L193
  test   %ebx,%ebx
  je     L149
  lea    -0x1(%rbx),%eax
  jmp    L181
L149:
  mov    $0x0,%eax
L181:
  mov    %eax,%ebx
  jmp    L262
L193:
  add    $0x1,%ebx
L262:
  cmp    $0xa,%r12d
  jne    L91
  mov    D94(%rip),%rax
  mov    (%rax),%edx
  mov    %r12d,%eax
  movsbl %al,%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <putc@plt>
  jmp    L120
L91:
  test   %r13d,%r13d
  je     L131
  cmp    %r13d,%ebx
  jge    L250
L131:
  mov    D94(%rip),%rax
  mov    (%rax),%edx
  mov    %r12d,%eax
  movsbl %al,%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <putc@plt>
  jmp    L219
L175:
  mov    D3(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <getc@plt>
  movsbl %al,%r12d
  mov    D3(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <feof@plt>
  test   %rax,%rax
  jne    L206
  cmp    $0xa,%r12d
  jne    L156
  mov    D94(%rip),%rax
  mov    (%rax),%edx
  mov    %r12d,%eax
  movsbl %al,%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <putc@plt>
  jmp    L120
L156:
  cmp    $0x9,%r12d
  jne    L304
  lea    0x8(%rbx),%eax
  and    $0xfffffff8,%eax
  mov    %eax,%ebx
  jmp    L250
L304:
  cmp    $0x8,%r12d
  jne    L293
  test   %ebx,%ebx
  je     L182
  lea    -0x1(%rbx),%eax
  jmp    L22
L182:
  mov    $0x0,%eax
L22:
  mov    %eax,%ebx
  jmp    L250
L293:
  add    $0x1,%ebx
L250:
  test   %r14d,%r14d
  je     L175
  cmp    %r14d,%ebx
  jl     L175
L169:
  mov    D3(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <getc@plt>
  movsbl %al,%r12d
  mov    D3(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <feof@plt>
  test   %rax,%rax
  jne    L103
  mov    D94(%rip),%rax
  mov    (%rax),%edx
  mov    %r12d,%eax
  movsbl %al,%eax
  mov    %edx,%esi
  mov    %eax,%edi
  call   <putc@plt>
  cmp    $0xa,%r12d
  jne    L169
  jmp    L120
L123:
  nop
  jmp    L109
L206:
  nop
  jmp    L109
L103:
  nop
L109:
  mov    D94(%rip),%rax
  mov    (%rax),%eax
  mov    %eax,%edi
  call   <fflush@plt>
  mov    $0x0,%edi
  call   <exit@plt>
  mov    $0x0,%eax
  add    $0x10,%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %rbp
  ret
```

assistant: ```c
int main(int argc, char **argv) {
  register c, ct, first, last;
  first = 0;
  last = 0;
  if (argc > 1)
    first = getn(*++argv);
  if (argc > 2)
    last = getn(*++argv);
start:
  ct = 0;
loop1:
  c = getc(stdin);
  if (feof(stdin))
    goto fin;
  if (c == '\t')
    ct = (ct + 8) & ~7;
  else if (c == '\b')
    ct = ct ? ct - 1 : 0;
  else
    ct++;
  if (c == '\n') {
    putc(c, stdout);
    goto start;
  }
  if (!first || ct < first) {
    putc(c, stdout);
    goto loop1;
  }
  while (!last || ct < last) {
    c = getc(stdin);
    if (feof(stdin))
      goto fin;
    if (c == '\n') {
      putc(c, stdout);
      goto start;
    }
    if (c == '\t')
      ct = (ct + 8) & ~7;
    else if (c == '\b')
      ct = ct ? ct - 1 : 0;
    else
      ct++;
  }
  for (;;) {
    c = getc(stdin);
    if (feof(stdin))
      break;
    putc(c, stdout);
    if (c == '\n')
      goto start;
  }
fin:
  fflush(stdout);
  exit(0);
}
```