user: 请从给定的汇编指令推导出C源代码：

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0xd8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0xc8(%rsp)
  xor    %eax,%eax
  lea    0x10(%rsp),%rbx
  jmp    L226
L480:
  lea    D13(%rip),%rdi
  call   <puts@plt>
L226:
  lea    0xc(%rsp),%rdx
  lea    0x8(%rsp),%rsi
  lea    D20(%rip),%rdi
  call   <scanf@plt>
  mov    0x8(%rsp),%ecx
  mov    0xc(%rsp),%r11d
  mov    %ecx,%eax
  or     %r11d,%eax
  je     L620
  mov    $0x13,%eax
  sub    %ecx,%eax
  imul   %ecx,%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  cmp    %eax,%r11d
  jg     L480
  lea    -0x1(%rcx),%edx
  imul   %ecx,%edx
  mov    %edx,%eax
  shr    $0x1f,%eax
  add    %edx,%eax
  sar    %eax
  cmp    %eax,%r11d
  jl     L480
  lea    0x10(%rsp),%rsi
  lea    0xc4(%rsp),%rdx
  mov    %rsi,%rax
L401:
  movl   $0x0,(%rax)
  add    $0x4,%rax
  cmp    %rdx,%rax
  jne    L401
  cmp    $0x9,%ecx
  ja     L508
  mov    %ecx,%ecx
  lea    D14(%rip),%rdx
  movslq (%rdx,%rcx,4),%rax
  add    %rdx,%rax
  notrack jmp *%rax
  lea    0x28(%rsi),%rax
L692:
  addl   $0x1,(%rsi)
  add    $0x4,%rsi
  cmp    %rax,%rsi
  jne    L692
L508:
  movslq %r11d,%r11
  mov    0x10(%rsp,%r11,4),%esi
  lea    D18(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  jmp    L226
  lea    0x14(%rsp),%rdx
  add    $0x28,%rsi
  mov    $0x0,%ecx
L259:
  add    $0x1,%ecx
  cmp    $0x9,%ecx
  jg     L628
  mov    %rdx,%rax
L459:
  addl   $0x1,(%rax)
  add    $0x4,%rax
  cmp    %rsi,%rax
  jne    L459
  add    $0x8,%rdx
  add    $0x4,%rsi
  cmp    $0x9,%ecx
  jne    L259
  jmp    L508
  mov    $0x0,%r9d
  mov    $0x9,%edi
  add    $0x4,%rsi
L362:
  add    $0x1,%r9d
  cmp    $0x8,%r9d
  jg     L362
  lea    (%r9,%r9,2),%r8d
  mov    %r9d,%ecx
L585:
  add    $0x1,%ecx
  cmp    $0x9,%ecx
  jg     L621
  movslq %r8d,%r10
  lea    (%rbx,%r10,4),%rax
  mov    %edi,%edx
  sub    %ecx,%edx
  add    %r10,%rdx
  lea    (%rsi,%rdx,4),%rdx
L15:
  addl   $0x1,(%rax)
  add    $0x4,%rax
  cmp    %rax,%rdx
  jne    L15
  add    $0x2,%r8d
  cmp    $0x9,%ecx
  jne    L585
  cmp    $0x8,%r9d
  jne    L362
  jmp    L508
  mov    $0x6,%r12d
  mov    $0x0,%ebp
  mov    $0x9,%edi
  add    $0x4,%rsi
L656:
  add    $0x1,%ebp
  cmp    $0x7,%ebp
  jg     L607
  mov    %r12d,%r13d
  mov    %ebp,%r10d
L185:
  add    $0x1,%r10d
  cmp    $0x8,%r10d
  jg     L119
  mov    %r13d,%r8d
  mov    %r10d,%ecx
L75:
  add    $0x1,%ecx
  cmp    $0x9,%ecx
  jg     L135
  movslq %r8d,%r9
  lea    (%rbx,%r9,4),%rax
  mov    %edi,%edx
  sub    %ecx,%edx
  add    %r9,%rdx
  lea    (%rsi,%rdx,4),%rdx
L184:
  addl   $0x1,(%rax)
  add    $0x4,%rax
  cmp    %rdx,%rax
  jne    L184
  add    $0x2,%r8d
  cmp    $0x9,%ecx
  jne    L75
  add    $0x3,%r13d
  cmp    $0x8,%r10d
  jne    L185
  add    $0x4,%r12d
  cmp    $0x7,%ebp
  jne    L656
  jmp    L508
  mov    $0xa,%r12d
  mov    $0x0,%ebp
  mov    $0x9,%r8d
  lea    0x4(%rsi),%rdi
L77:
  add    $0x1,%ebp
  cmp    $0x6,%ebp
  jg     L644
  mov    %r12d,%r14d
  mov    %ebp,%r13d
L446:
  add    $0x1,%r13d
  cmp    $0x7,%r13d
  jg     L717
  mov    %r14d,%r10d
  mov    %r13d,%r9d
L661:
  add    $0x1,%r9d
  cmp    $0x8,%r9d
  jg     L363
  mov    %r10d,%esi
  mov    %r9d,%ecx
L230:
  add    $0x1,%ecx
  cmp    $0x9,%ecx
  jg     L113
  movslq %esi,%r15
  lea    (%rbx,%r15,4),%rax
  mov    %r8d,%edx
  sub    %ecx,%edx
  add    %r15,%rdx
  lea    (%rdi,%rdx,4),%rdx
L571:
  addl   $0x1,(%rax)
  add    $0x4,%rax
  cmp    %rdx,%rax
  jne    L571
  add    $0x2,%esi
  cmp    $0x9,%ecx
  jne    L230
  add    $0x3,%r10d
  cmp    $0x8,%r9d
  jne    L661
  add    $0x4,%r14d
  cmp    $0x7,%r13d
  jne    L446
  add    $0x5,%r12d
  cmp    $0x6,%ebp
  jne    L77
  jmp    L508
  mov    $0x27,%ebp
  mov    $0x0,%r10d
  sub    $0x4,%rsi
  mov    $0x9,%r8d
L440:
  add    $0x1,%r10d
  cmp    $0x7,%r10d
  jg     L265
  mov    %ebp,%r12d
  mov    %r10d,%r9d
L522:
  add    $0x1,%r9d
  cmp    $0x8,%r9d
  jg     L200
  mov    %r12d,%edi
  mov    %r9d,%ecx
L684:
  add    $0x1,%ecx
  cmp    $0x9,%ecx
  jg     L494
  movslq %edi,%rdx
  shl    $0x2,%rdx
  lea    (%rbx,%rdx,1),%rax
  add    %rsi,%rdx
  mov    %r8d,%r13d
  sub    %ecx,%r13d
  shl    $0x2,%r13
  sub    %r13,%rdx
L270:
  addl   $0x1,(%rax)
  sub    $0x4,%rax
  cmp    %rdx,%rax
  jne    L270
  sub    $0x2,%edi
  cmp    $0x9,%ecx
  jne    L684
  sub    $0x3,%r12d
  cmp    $0x8,%r9d
  jne    L522
  sub    $0x4,%ebp
  cmp    $0x7,%r10d
  jne    L440
  jmp    L508
  mov    $0x2a,%ebp
  mov    $0x0,%r10d
  sub    $0x4,%rsi
  mov    $0x9,%r12d
L103:
  add    $0x1,%r10d
  cmp    $0x8,%r10d
  jg     L202
  mov    %ebp,%r8d
  mov    %r10d,%ecx
L163:
  add    $0x1,%ecx
  cmp    $0x9,%ecx
  jg     L289
  movslq %r8d,%rdx
  shl    $0x2,%rdx
  lea    (%rbx,%rdx,1),%rax
  add    %rsi,%rdx
  mov    %r12d,%r9d
  sub    %ecx,%r9d
  shl    $0x2,%r9
  sub    %r9,%rdx
L2:
  addl   $0x1,(%rax)
  sub    $0x4,%rax
  cmp    %rdx,%rax
  jne    L2
  sub    $0x2,%r8d
  cmp    $0x9,%ecx
  jne    L163
  sub    $0x3,%ebp
  cmp    $0x8,%r10d
  jne    L103
  jmp    L508
  lea    0xc0(%rsp),%rdx
  add    $0x8c,%rsi
  mov    $0x0,%ecx
L442:
  add    $0x1,%ecx
  cmp    $0x9,%ecx
  jg     L35
  mov    %rdx,%rax
L473:
  addl   $0x1,(%rax)
  sub    $0x4,%rax
  cmp    %rsi,%rax
  jne    L473
  sub    $0x8,%rdx
  sub    $0x4,%rsi
  cmp    $0x9,%ecx
  jne    L442
  jmp    L508
  lea    0xc4(%rsp),%rax
  add    $0x8c,%rsi
L207:
  addl   $0x1,(%rax)
  sub    $0x4,%rax
  cmp    %rsi,%rax
  jne    L207
  jmp    L508
L620:
  mov    0xc8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L637
  mov    $0x0,%eax
  add    $0xd8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L628:
  add    $0x8,%rdx
  add    $0x4,%rsi
  jmp    L259
L621:
  add    $0x2,%r8d
  jmp    L585
L607:
  add    $0x4,%r12d
  jmp    L656
L119:
  add    $0x3,%r13d
  jmp    L185
L135:
  add    $0x2,%r8d
  jmp    L75
L644:
  add    $0x5,%r12d
  jmp    L77
L717:
  add    $0x4,%r14d
  jmp    L446
L363:
  add    $0x3,%r10d
  jmp    L661
L113:
  add    $0x2,%esi
  jmp    L230
L265:
  sub    $0x4,%ebp
  jmp    L440
L200:
  sub    $0x3,%r12d
  jmp    L522
L494:
  sub    $0x2,%edi
  jmp    L684
L202:
  sub    $0x3,%ebp
  jmp    L103
L289:
  sub    $0x2,%r8d
  jmp    L163
L35:
  sub    $0x8,%rdx
  sub    $0x4,%rsi
  jmp    L442
L637:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: tag: D13
datatype: string
name: read_data
arguments: tag: D20
datatype: string
name: read_data
arguments: tag: D18
datatype: string

tool: D13: 0

tool: D20: %d %d


tool: D18: %d


assistant: ```c
int main(void) {
  int num, sum, ans[45], i, j, k, l, m;
  while (1) {
    scanf("%d %d\n", &num, &sum);
    if (num == 0 && sum == 0)
      break;
    if (sum > num * (19 - num) / 2 || sum < num * (num - 1) / 2) {
      printf("0\n");
      continue;
    }
    for (i = 0; i < 45; i++)
      ans[i] = 0;
    switch (num) {
    case 1:
      for (i = 0; i <= 9; i++)
        ans[i]++;
      break;
    case 2:
      for (i = 0; i <= 8; i++) {
        for (j = i + 1; j <= 9; j++)
          ans[i + j]++;
      }
      break;
    case 3:
      for (i = 0; i <= 7; i++) {
        for (j = i + 1; j <= 8; j++) {
          for (k = j + 1; k <= 9; k++)
            ans[i + j + k]++;
        }
      }
      break;
    case 4:
      for (i = 0; i <= 6; i++) {
        for (j = i + 1; j <= 7; j++) {
          for (k = j + 1; k <= 8; k++) {
            for (l = k + 1; l <= 9; l++)
              ans[i + j + k + l]++;
          }
        }
      }
      break;
    case 5:
      for (i = 0; i <= 5; i++) {
        for (j = i + 1; j <= 6; j++) {
          for (k = j + 1; k <= 7; k++) {
            for (l = k + 1; l <= 8; l++) {
              for (m = l + 1; m <= 9; m++)
                ans[i + j + k + l + m]++;
            }
          }
        }
      }
      break;
    case 6:
      for (i = 0; i <= 6; i++) {
        for (j = i + 1; j <= 7; j++) {
          for (k = j + 1; k <= 8; k++) {
            for (l = k + 1; l <= 9; l++)
              ans[45 - (i + j + k + l)]++;
          }
        }
      }
      break;
    case 7:
      for (i = 0; i <= 7; i++) {
        for (j = i + 1; j <= 8; j++) {
          for (k = j + 1; k <= 9; k++)
            ans[45 - (i + j + k)]++;
        }
      }
      break;
    case 8:
      for (i = 0; i <= 8; i++) {
        for (j = i + 1; j <= 9; j++)
          ans[45 - (i + j)]++;
      }
      break;
    case 9:
      for (i = 0; i <= 9; i++)
        ans[45 - i]++;
      break;
    }
    printf("%d\n", ans[sum]);
  }
  return 0;
}
```