user: 这段汇编代码用C语言表示是什么样的:

```asm
<running_stairs>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  test   %edi,%edi
  js     L1472
  je     L892
  movq   $0x0,0x40(%rsp)
  mov    %edi,%eax
  sub    $0x2,%eax
  mov    %eax,0x54(%rsp)
L1251:
  movq   $0x0,0x38(%rsp)
  mov    0x54(%rsp),%eax
  sub    $0x1,%eax
  mov    %eax,0x5c(%rsp)
  mov    %eax,0x2c(%rsp)
L506:
  mov    0x2c(%rsp),%eax
  cmp    $0xfffffffe,%eax
  je     L28
  movq   $0x0,0x10(%rsp)
  sub    $0x1,%eax
  mov    %eax,0x30(%rsp)
  mov    %eax,0x8(%rsp)
L1002:
  mov    0x8(%rsp),%eax
  cmp    $0xfffffffe,%eax
  je     L52
  sub    $0x1,%eax
  xor    %ebp,%ebp
  mov    %eax,%ebx
  mov    %eax,0x28(%rsp)
  cmp    $0xfffffffe,%ebx
  je     L860
L70:
  lea    0x1(%rbx),%r12d
  xor    %r14d,%r14d
L720:
  test   %r12d,%r12d
  je     L90
  lea    -0x1(%r12),%edi
  call   <running_stairs>
  lea    -0x2(%r12),%edi
  mov    %rax,%r13
  call   <running_stairs>
  add    %rax,%r13
  add    %r13,%r14
  sub    $0x3,%r12d
  jns    L720
L361:
  mov    %ebx,%r12d
  cmp    $0xffffffff,%ebx
  je     L1230
  test   %ebx,%ebx
  je     L784
  xor    %r15d,%r15d
L51:
  lea    -0x1(%r12),%edi
  call   <running_stairs>
  lea    -0x2(%r12),%edi
  mov    %rax,%r13
  call   <running_stairs>
  add    %rax,%r13
  add    %r13,%r15
  sub    $0x3,%r12d
  js     L632
  jne    L51
  lea    0x1(%r15,%r14,1),%r14
L1230:
  add    %r14,%rbp
  lea    -0x3(%rbx),%eax
  sub    $0x1,%ebx
  js     L923
  mov    %eax,%ebx
  cmp    $0xfffffffe,%ebx
  jne    L70
L860:
  add    $0x1,%rbp
L923:
  mov    0x8(%rsp),%eax
  cmp    $0xffffffff,%eax
  je     L0
  test   %eax,%eax
  je     L383
  mov    %rbp,0x18(%rsp)
  lea    -0x2(%rax),%r13d
  xor    %r12d,%r12d
L665:
  lea    0x1(%r13),%ebx
  xor    %r14d,%r14d
L908:
  test   %ebx,%ebx
  je     L943
  lea    -0x1(%rbx),%edi
  call   <running_stairs>
  lea    -0x2(%rbx),%edi
  mov    %rax,%rbp
  call   <running_stairs>
  add    %rax,%rbp
  add    %rbp,%r14
  sub    $0x3,%ebx
  jns    L908
L1205:
  mov    %r13d,%ebx
  cmp    $0xffffffff,%r13d
  je     L1229
  test   %r13d,%r13d
  je     L1208
  xor    %ebp,%ebp
L761:
  lea    -0x1(%rbx),%edi
  call   <running_stairs>
  lea    -0x2(%rbx),%edi
  mov    %rax,%r15
  call   <running_stairs>
  add    %rax,%r15
  add    %r15,%rbp
  sub    $0x3,%ebx
  js     L1397
  jne    L761
  lea    0x1(%rbp,%r14,1),%r14
L1229:
  mov    %r13d,%eax
  add    %r14,%r12
  sub    $0x1,%eax
  js     L978
L464:
  sub    $0x3,%r13d
  cmp    $0xfffffffe,%r13d
  jne    L665
  mov    0x18(%rsp),%rbp
  lea    0x1(%r12,%rbp,1),%rbp
L0:
  mov    0x28(%rsp),%r10d
  add    %rbp,0x10(%rsp)
  subl   $0x3,0x8(%rsp)
  test   %r10d,%r10d
  jns    L1002
L77:
  mov    0x2c(%rsp),%eax
  cmp    $0xffffffff,%eax
  je     L237
  test   %eax,%eax
  je     L98
  movq   $0x0,0x20(%rsp)
  sub    $0x2,%eax
  mov    %eax,0x8(%rsp)
L81:
  mov    0x8(%rsp),%eax
  xor    %ebp,%ebp
  sub    $0x1,%eax
  mov    %eax,%ebx
  mov    %eax,0x28(%rsp)
  cmp    $0xfffffffe,%ebx
  je     L549
L1199:
  lea    0x1(%rbx),%r12d
  xor    %r14d,%r14d
L1113:
  test   %r12d,%r12d
  je     L416
  lea    -0x1(%r12),%edi
  call   <running_stairs>
  lea    -0x2(%r12),%edi
  mov    %rax,%r13
  call   <running_stairs>
  add    %rax,%r13
  add    %r13,%r14
  sub    $0x3,%r12d
  jns    L1113
L990:
  mov    %ebx,%r12d
  cmp    $0xffffffff,%ebx
  je     L1122
  test   %ebx,%ebx
  je     L994
  xor    %r15d,%r15d
L1537:
  lea    -0x1(%r12),%edi
  call   <running_stairs>
  lea    -0x2(%r12),%edi
  mov    %rax,%r13
  call   <running_stairs>
  add    %rax,%r13
  add    %r13,%r15
  sub    $0x3,%r12d
  js     L516
  jne    L1537
  lea    0x1(%r15,%r14,1),%r14
L1122:
  add    %r14,%rbp
  lea    -0x3(%rbx),%eax
  sub    $0x1,%ebx
  js     L983
  mov    %eax,%ebx
  cmp    $0xfffffffe,%ebx
  jne    L1199
L549:
  add    $0x1,%rbp
L983:
  mov    0x8(%rsp),%eax
  cmp    $0xffffffff,%eax
  je     L32
  test   %eax,%eax
  je     L227
  mov    %rbp,0x18(%rsp)
  lea    -0x2(%rax),%r13d
  xor    %r12d,%r12d
L224:
  lea    0x1(%r13),%ebx
  xor    %r14d,%r14d
L1421:
  test   %ebx,%ebx
  je     L941
  lea    -0x1(%rbx),%edi
  call   <running_stairs>
  lea    -0x2(%rbx),%edi
  mov    %rax,%rbp
  call   <running_stairs>
  add    %rax,%rbp
  add    %rbp,%r14
  sub    $0x3,%ebx
  jns    L1421
L24:
  mov    %r13d,%ebx
  cmp    $0xffffffff,%r13d
  je     L482
  test   %r13d,%r13d
  je     L277
  xor    %ebp,%ebp
L1044:
  lea    -0x1(%rbx),%edi
  call   <running_stairs>
  lea    -0x2(%rbx),%edi
  mov    %rax,%r15
  call   <running_stairs>
  add    %rax,%r15
  add    %r15,%rbp
  sub    $0x3,%ebx
  js     L575
  jne    L1044
  lea    0x1(%rbp,%r14,1),%r14
L482:
  mov    %r13d,%eax
  add    %r14,%r12
  sub    $0x1,%eax
  js     L31
L149:
  sub    $0x3,%r13d
  cmp    $0xfffffffe,%r13d
  jne    L224
  mov    0x18(%rsp),%rbp
  lea    0x1(%r12,%rbp,1),%rbp
L32:
  mov    0x28(%rsp),%r9d
  add    %rbp,0x20(%rsp)
  test   %r9d,%r9d
  js     L50
L1515:
  subl   $0x3,0x8(%rsp)
  mov    0x8(%rsp),%eax
  cmp    $0xfffffffe,%eax
  jne    L81
  mov    0x10(%rsp),%rcx
  mov    0x20(%rsp),%rax
  lea    0x1(%rax,%rcx,1),%rax
  mov    %rax,0x10(%rsp)
L237:
  mov    0x30(%rsp),%r8d
  mov    0x10(%rsp),%rsi
  subl   $0x3,0x2c(%rsp)
  add    %rsi,0x38(%rsp)
  test   %r8d,%r8d
  jns    L506
L195:
  mov    0x54(%rsp),%eax
  cmp    $0xffffffff,%eax
  je     L621
  test   %eax,%eax
  je     L153
  movq   $0x0,0x48(%rsp)
  sub    $0x2,%eax
  mov    %eax,0x50(%rsp)
L636:
  movq   $0x0,0x30(%rsp)
  mov    0x50(%rsp),%eax
  sub    $0x1,%eax
  mov    %eax,0x58(%rsp)
  mov    %eax,0x18(%rsp)
L171:
  mov    0x18(%rsp),%eax
  cmp    $0xfffffffe,%eax
  je     L995
  sub    $0x1,%eax
  xor    %r14d,%r14d
  mov    %eax,%ebx
  mov    %eax,0x2c(%rsp)
  cmp    $0xfffffffe,%ebx
  je     L33
L1024:
  lea    0x1(%rbx),%ebp
  xor    %r13d,%r13d
L351:
  test   %ebp,%ebp
  je     L608
  lea    -0x1(%rbp),%edi
  call   <running_stairs>
  lea    -0x2(%rbp),%edi
  mov    %rax,%r12
  call   <running_stairs>
  add    %rax,%r12
  add    %r12,%r13
  sub    $0x3,%ebp
  jns    L351
L1062:
  mov    %ebx,%ebp
  cmp    $0xffffffff,%ebx
  je     L585
  test   %ebx,%ebx
  je     L244
  xor    %r15d,%r15d
L1462:
  lea    -0x1(%rbp),%edi
  call   <running_stairs>
  lea    -0x2(%rbp),%edi
  mov    %rax,%r12
  call   <running_stairs>
  add    %rax,%r12
  add    %r12,%r15
  sub    $0x3,%ebp
  js     L333
  jne    L1462
  lea    0x1(%r15,%r13,1),%r13
L585:
  add    %r13,%r14
  lea    -0x3(%rbx),%eax
  sub    $0x1,%ebx
  js     L1535
L1268:
  mov    %eax,%ebx
  cmp    $0xfffffffe,%ebx
  jne    L1024
L33:
  mov    %r14,%rax
  add    $0x1,%rax
  mov    %rax,0x20(%rsp)
L1054:
  mov    0x18(%rsp),%eax
  cmp    $0xffffffff,%eax
  je     L1323
  test   %eax,%eax
  je     L913
  movq   $0x0,0x10(%rsp)
  lea    -0x2(%rax),%r12d
L92:
  movq   $0x0,0x8(%rsp)
  lea    -0x1(%r12),%eax
  mov    %eax,%r15d
  mov    %eax,0x28(%rsp)
  cmp    $0xfffffffe,%r15d
  je     L1150
L362:
  lea    0x1(%r15),%ebp
  xor    %r14d,%r14d
L772:
  test   %ebp,%ebp
  je     L178
  lea    -0x1(%rbp),%edi
  call   <running_stairs>
  lea    -0x2(%rbp),%edi
  mov    %rax,%rbx
  call   <running_stairs>
  add    %rax,%rbx
  add    %rbx,%r14
  sub    $0x3,%ebp
  jns    L772
L189:
  mov    %r15d,%ebp
  cmp    $0xffffffff,%r15d
  je     L1004
  test   %r15d,%r15d
  je     L1247
  xor    %r13d,%r13d
L1163:
  lea    -0x1(%rbp),%edi
  call   <running_stairs>
  lea    -0x2(%rbp),%edi
  mov    %rax,%rbx
  call   <running_stairs>
  add    %rax,%rbx
  add    %rbx,%r13
  sub    $0x3,%ebp
  js     L1477
  jne    L1163
  lea    0x1(%r13,%r14,1),%r14
L1004:
  add    %r14,0x8(%rsp)
  lea    -0x3(%r15),%eax
  sub    $0x1,%r15d
  js     L1502
  mov    %eax,%r15d
  cmp    $0xfffffffe,%r15d
  jne    L362
L1150:
  addq   $0x1,0x8(%rsp)
L1502:
  mov    %r12d,%ebp
  cmp    $0xffffffff,%r12d
  je     L1381
  test   %r12d,%r12d
  je     L1435
  xor    %r13d,%r13d
L939:
  lea    -0x1(%rbp),%r14d
  xor    %r15d,%r15d
L684:
  test   %r14d,%r14d
  je     L315
  lea    -0x1(%r14),%edi
  call   <running_stairs>
  lea    -0x2(%r14),%edi
  mov    %rax,%rbx
  call   <running_stairs>
  add    %rax,%rbx
  add    %rbx,%r15
  sub    $0x3,%r14d
  jns    L684
L1466:
  lea    -0x2(%rbp),%edi
  call   <running_stairs>
  add    %r15,%rax
  add    %rax,%r13
  sub    $0x3,%ebp
  js     L759
  jne    L939
  mov    0x8(%rsp),%rax
  lea    0x1(%r13,%rax,1),%rax
  mov    %rax,0x8(%rsp)
L1381:
  mov    0x28(%rsp),%edi
  mov    0x8(%rsp),%rdx
  add    %rdx,0x10(%rsp)
  test   %edi,%edi
  js     L232
  sub    $0x3,%r12d
  cmp    $0xfffffffe,%r12d
  jne    L92
  mov    0x20(%rsp),%rsi
  mov    0x10(%rsp),%rax
  lea    0x1(%rax,%rsi,1),%rax
  mov    %rax,0x20(%rsp)
L1323:
  mov    0x2c(%rsp),%esi
  mov    0x20(%rsp),%rcx
  subl   $0x3,0x18(%rsp)
  add    %rcx,0x30(%rsp)
  test   %esi,%esi
  jns    L171
L847:
  mov    0x50(%rsp),%eax
  cmp    $0xffffffff,%eax
  je     L503
  test   %eax,%eax
  je     L668
  movq   $0x0,0x18(%rsp)
  sub    $0x2,%eax
  mov    %eax,0x8(%rsp)
L144:
  mov    0x8(%rsp),%eax
  xor    %ebp,%ebp
  sub    $0x1,%eax
  mov    %eax,%ebx
  mov    %eax,0x28(%rsp)
  cmp    $0xfffffffe,%ebx
  je     L119
L740:
  lea    0x1(%rbx),%r12d
  xor    %r14d,%r14d
L766:
  test   %r12d,%r12d
  je     L956
  lea    -0x1(%r12),%edi
  call   <running_stairs>
  lea    -0x2(%r12),%edi
  mov    %rax,%r13
  call   <running_stairs>
  add    %rax,%r13
  add    %r13,%r14
  sub    $0x3,%r12d
  jns    L766
L763:
  mov    %ebx,%r12d
  cmp    $0xffffffff,%ebx
  je     L1373
  test   %ebx,%ebx
  je     L724
  xor    %r15d,%r15d
L1308:
  lea    -0x1(%r12),%edi
  call   <running_stairs>
  lea    -0x2(%r12),%edi
  mov    %rax,%r13
  call   <running_stairs>
  add    %rax,%r13
  add    %r13,%r15
  sub    $0x3,%r12d
  js     L1482
  jne    L1308
  lea    0x1(%r15,%r14,1),%r14
L1373:
  add    %r14,%rbp
  lea    -0x3(%rbx),%eax
  sub    $0x1,%ebx
  js     L1440
  mov    %eax,%ebx
  cmp    $0xfffffffe,%ebx
  jne    L740
L119:
  add    $0x1,%rbp
L1440:
  mov    0x8(%rsp),%eax
  cmp    $0xffffffff,%eax
  je     L713
  test   %eax,%eax
  je     L1486
  mov    %rbp,0x10(%rsp)
  lea    -0x2(%rax),%r13d
  xor    %r12d,%r12d
L745:
  lea    0x1(%r13),%ebx
  xor    %r14d,%r14d
L288:
  test   %ebx,%ebx
  je     L537
  lea    -0x1(%rbx),%edi
  call   <running_stairs>
  lea    -0x2(%rbx),%edi
  mov    %rax,%rbp
  call   <running_stairs>
  add    %rax,%rbp
  add    %rbp,%r14
  sub    $0x3,%ebx
  jns    L288
L1187:
  mov    %r13d,%ebx
  cmp    $0xffffffff,%r13d
  je     L1124
  test   %r13d,%r13d
  je     L1223
  xor    %ebp,%ebp
L210:
  lea    -0x1(%rbx),%edi
  call   <running_stairs>
  lea    -0x2(%rbx),%edi
  mov    %rax,%r15
  call   <running_stairs>
  add    %rax,%r15
  add    %r15,%rbp
  sub    $0x3,%ebx
  js     L486
  jne    L210
  lea    0x1(%rbp,%r14,1),%r14
L1124:
  mov    %r13d,%eax
  add    %r14,%r12
  sub    $0x1,%eax
  js     L1330
L946:
  sub    $0x3,%r13d
  cmp    $0xfffffffe,%r13d
  jne    L745
  mov    0x10(%rsp),%rbp
  lea    0x1(%r12,%rbp,1),%rbp
L713:
  mov    0x28(%rsp),%ecx
  add    %rbp,0x18(%rsp)
  test   %ecx,%ecx
  js     L157
L746:
  subl   $0x3,0x8(%rsp)
  mov    0x8(%rsp),%eax
  cmp    $0xfffffffe,%eax
  jne    L144
  mov    0x30(%rsp),%rcx
  mov    0x18(%rsp),%rax
  lea    0x1(%rax,%rcx,1),%rax
  mov    %rax,0x30(%rsp)
L503:
  mov    0x58(%rsp),%edx
  mov    0x30(%rsp),%rsi
  add    %rsi,0x48(%rsp)
  test   %edx,%edx
  js     L675
  subl   $0x3,0x50(%rsp)
  mov    0x50(%rsp),%eax
  cmp    $0xfffffffe,%eax
  jne    L636
  mov    0x38(%rsp),%rcx
  mov    0x48(%rsp),%rax
  lea    0x1(%rax,%rcx,1),%rax
  mov    %rax,0x38(%rsp)
L621:
  mov    0x5c(%rsp),%eax
  mov    0x38(%rsp),%rsi
  add    %rsi,0x40(%rsp)
  test   %eax,%eax
  js     L1224
  subl   $0x3,0x54(%rsp)
  mov    0x54(%rsp),%eax
  cmp    $0xfffffffe,%eax
  jne    L1251
  addq   $0x1,0x40(%rsp)
L1224:
  mov    0x40(%rsp),%rax
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax,%rax,1)
L90:
  add    $0x1,%r14
  jmp    L361
  nopl   0x0(%rax)
L632:
  add    %r15,%r14
  jmp    L1230
  nopl   0x0(%rax,%rax,1)
L416:
  add    $0x1,%r14
  jmp    L990
  nopl   0x0(%rax)
L943:
  add    $0x1,%r14
  jmp    L1205
  nopl   0x0(%rax)
L516:
  add    %r15,%r14
  jmp    L1122
  nopl   0x0(%rax,%rax,1)
L1397:
  add    %rbp,%r14
  mov    %r13d,%eax
  add    %r14,%r12
  sub    $0x1,%eax
  jns    L464
L978:
  mov    0x18(%rsp),%rbp
  add    %r12,%rbp
  jmp    L0
  nop
L608:
  add    $0x1,%r13
  jmp    L1062
  nopl   0x0(%rax)
L941:
  add    $0x1,%r14
  jmp    L24
  nopl   0x0(%rax)
L333:
  add    %r15,%r13
  lea    -0x3(%rbx),%eax
  add    %r13,%r14
  sub    $0x1,%ebx
  jns    L1268
L1535:
  mov    %r14,0x20(%rsp)
  jmp    L1054
  nopl   0x0(%rax)
L575:
  add    %rbp,%r14
  mov    %r13d,%eax
  add    %r14,%r12
  sub    $0x1,%eax
  jns    L149
L31:
  mov    0x18(%rsp),%rbp
  mov    0x28(%rsp),%r9d
  add    %r12,%rbp
  add    %rbp,0x20(%rsp)
  test   %r9d,%r9d
  jns    L1515
L50:
  mov    0x20(%rsp),%rsi
  add    %rsi,0x10(%rsp)
  jmp    L237
  nopl   0x0(%rax)
L178:
  add    $0x1,%r14
  jmp    L189
  nopl   0x0(%rax)
L1477:
  add    %r13,%r14
  jmp    L1004
  nopl   0x0(%rax,%rax,1)
L315:
  add    $0x1,%r15
  jmp    L1466
  nopl   0x0(%rax)
L956:
  add    $0x1,%r14
  jmp    L763
  nopl   0x0(%rax)
L1482:
  add    %r15,%r14
  jmp    L1373
  nopl   0x0(%rax,%rax,1)
L759:
  add    %r13,0x8(%rsp)
  jmp    L1381
  nopw   0x0(%rax,%rax,1)
L1247:
  mov    0x8(%rsp),%rax
  lea    0x1(%r14,%rax,1),%rax
  mov    %rax,0x8(%rsp)
  jmp    L1502
  nopl   0x0(%rax)
L537:
  add    $0x1,%r14
  jmp    L1187
  nopl   0x0(%rax)
L486:
  add    %rbp,%r14
  mov    %r13d,%eax
  add    %r14,%r12
  sub    $0x1,%eax
  jns    L946
L1330:
  mov    0x10(%rsp),%rbp
  mov    0x28(%rsp),%ecx
  add    %r12,%rbp
  add    %rbp,0x18(%rsp)
  test   %ecx,%ecx
  jns    L746
L157:
  mov    0x18(%rsp),%rsi
  add    %rsi,0x30(%rsp)
  jmp    L503
L994:
  lea    0x1(%r14,%rbp,1),%rbp
  jmp    L983
L1208:
  mov    0x18(%rsp),%rbp
  lea    0x1(%r12,%r14,1),%rax
  add    %rax,%rbp
  jmp    L0
L1435:
  mov    0x10(%rsp),%rax
  mov    0x8(%rsp),%rcx
  lea    0x1(%rax,%rcx,1),%rax
  add    %rax,0x20(%rsp)
  jmp    L1323
L244:
  lea    0x1(%r13,%r14,1),%rax
  mov    %rax,0x20(%rsp)
  jmp    L1054
L784:
  lea    0x1(%r14,%rbp,1),%rbp
  jmp    L923
L724:
  lea    0x1(%r14,%rbp,1),%rbp
  jmp    L1440
L1223:
  mov    0x10(%rsp),%rbp
  lea    0x1(%r12,%r14,1),%rax
  add    %rax,%rbp
  jmp    L713
L277:
  mov    0x18(%rsp),%rbp
  lea    0x1(%r12,%r14,1),%rax
  add    %rax,%rbp
  jmp    L32
L995:
  addq   $0x1,0x30(%rsp)
  jmp    L847
L52:
  addq   $0x1,0x10(%rsp)
  jmp    L77
L383:
  mov    0x10(%rsp),%rax
  lea    0x1(%rbp,%rax,1),%rax
  mov    %rax,0x10(%rsp)
  jmp    L77
L227:
  mov    0x20(%rsp),%rax
  lea    0x1(%rax,%rbp,1),%rax
  add    %rax,0x10(%rsp)
  jmp    L237
L913:
  mov    0x30(%rsp),%rcx
  mov    0x20(%rsp),%rax
  lea    0x1(%rax,%rcx,1),%rax
  mov    %rax,0x30(%rsp)
  jmp    L847
L1486:
  mov    0x18(%rsp),%rax
  lea    0x1(%rax,%rbp,1),%rax
  add    %rax,0x30(%rsp)
  jmp    L503
L232:
  mov    0x10(%rsp),%rsi
  add    %rsi,0x20(%rsp)
  jmp    L1323
L28:
  addq   $0x1,0x38(%rsp)
  jmp    L195
L668:
  mov    0x48(%rsp),%rax
  mov    0x30(%rsp),%rsi
  lea    0x1(%rax,%rsi,1),%rax
  add    %rax,0x38(%rsp)
  jmp    L621
L98:
  mov    0x38(%rsp),%rax
  mov    0x10(%rsp),%rsi
  lea    0x1(%rax,%rsi,1),%rax
  mov    %rax,0x38(%rsp)
  jmp    L195
L153:
  mov    0x40(%rsp),%rcx
  mov    0x38(%rsp),%rax
  lea    0x1(%rax,%rcx,1),%rax
  mov    %rax,0x40(%rsp)
  jmp    L1224
L675:
  mov    0x48(%rsp),%rcx
  add    %rcx,0x38(%rsp)
  jmp    L621
L1472:
  movq   $0x0,0x40(%rsp)
  jmp    L1224
L892:
  movq   $0x1,0x40(%rsp)
  jmp    L1224
```

assistant: ```c
long running_stairs(int s) {
  if (s < 0) {
    return 0;
  } else if (s == 0) {
    return 1;
  } else {
    return running_stairs(s - 1) + running_stairs(s - 2) + running_stairs(s - 3);
  }
}
```