user: 请将以下的汇编代码转换成C语言代码:

```asm
<multi>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbx
  lea    -0x27000(%rsp),%r11
L2:
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  cmp    %r11,%rsp
  jne    L2
  sub    $0x128,%rsp
  mov    %rdi,%rbx
  mov    %rsi,%r12
  mov    %fs:0x28,%rax
  mov    %rax,-0x38(%rbp)
  xor    %eax,%eax
  test   %rdi,%rdi
  setne  %al
  test   %rsi,%rsi
  setne  %dil
  movzbl %dil,%edi
  and    %eax,%edi
  call   <assert@plt>
  mov    %rbx,%rdi
  call   <strlen@plt>
  mov    %eax,%r13d
  mov    %r12,%rdi
  call   <strlen@plt>
  mov    %eax,%r14d
  movzbl (%rbx),%eax
  lea    -0x2b(%rax),%edx
  mov    $0x0,%r15d
  test   $0xfd,%dl
  jne    L24
  cmp    $0x2d,%al
  sete   %r15b
  movzbl %r15b,%r15d
  sub    $0x1,%r13d
  add    $0x1,%rbx
L24:
  movzbl (%r12),%eax
  lea    -0x2b(%rax),%edx
  test   $0xfd,%dl
  jne    L339
  mov    %r15d,%edx
  xor    $0x1,%r15d
  cmp    $0x2d,%al
  cmovne %edx,%r15d
  sub    $0x1,%r14d
  add    $0x1,%r12
L339:
  test   %r13d,%r13d
  jle    L223
  mov    %rbx,%rdx
  mov    $0x0,%eax
L85:
  cmpb   $0x0,(%rdx)
  jne    L337
  add    $0x1,%eax
  add    $0x1,%rdx
  cmp    %eax,%r13d
  jne    L85
  lea    D28(%rip),%r12
L12:
  mov    -0x38(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L336
  mov    %r12,%rax
  lea    -0x28(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  pop    %rbp
  ret
L223:
  mov    $0x0,%eax
L337:
  cmp    %eax,%r13d
  je     L105
  test   %r14d,%r14d
  jle    L159
  mov    %r12,%rdx
  mov    $0x0,%eax
L358:
  cmpb   $0x0,(%rdx)
  jne    L130
  add    $0x1,%eax
  add    $0x1,%rdx
  cmp    %eax,%r14d
  jne    L358
  lea    D28(%rip),%r12
  jmp    L12
L159:
  mov    $0x0,%eax
L130:
  cmp    %eax,%r14d
  je     L258
  lea    0x0(%r13,%r14,1),%eax
  mov    %eax,-0x27144(%rbp)
  add    $0x1,%eax
  cltq
  add    $0xf,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffffff0,%rcx
  and    $0xfffffffffffff000,%rax
  mov    %rsp,%rdx
  sub    %rax,%rdx
L302:
  cmp    %rdx,%rsp
  je     L177
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L302
L177:
  mov    %rcx,%rax
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  je     L246
  orq    $0x0,-0x8(%rsp,%rax,1)
L246:
  mov    %rsp,-0x27150(%rbp)
  lea    -0x27140(%rbp),%rdi
  mov    $0x9c40,%edx
  mov    $0x0,%esi
  call   <memset@plt>
  lea    -0x1d500(%rbp),%rdi
  mov    $0x9c40,%edx
  mov    $0x0,%esi
  call   <memset@plt>
  lea    -0x138c0(%rbp),%rdi
  mov    $0x13880,%edx
  mov    $0x0,%esi
  call   <memset@plt>
  mov    %r13d,%eax
  sub    $0x1,%eax
  js     L252
  cltq
  add    %rax,%rbx
  lea    -0x27140(%rbp),%rax
  lea    -0x1(%r13),%edx
  lea    -0x2713c(%rbp,%rdx,4),%rcx
L344:
  movsbl (%rbx),%edx
  sub    $0x30,%edx
  mov    %edx,(%rax)
  sub    $0x1,%rbx
  add    $0x4,%rax
  cmp    %rcx,%rax
  jne    L344
L252:
  mov    %r14d,%eax
  sub    $0x1,%eax
  js     L143
  cltq
  add    %rax,%r12
  lea    -0x1d500(%rbp),%rax
  lea    -0x1(%r14),%edx
  lea    -0x1d4fc(%rbp,%rdx,4),%rcx
L70:
  movsbl (%r12),%edx
  sub    $0x30,%edx
  mov    %edx,(%rax)
  sub    $0x1,%r12
  add    $0x4,%rax
  cmp    %rcx,%rax
  jne    L70
L143:
  test   %r14d,%r14d
  jle    L281
  lea    -0x138c0(%rbp),%r9
  lea    -0x1(%r14),%r10d
  lea    -0x27140(%rbp),%r11
  lea    -0x1(%r13),%eax
  lea    -0x2713c(%rbp,%rax,4),%rdi
  mov    $0x0,%r8d
  jmp    L289
L110:
  mov    -0x1d500(%rbp,%r8,4),%esi
  mov    %r11,%rdx
  mov    %r9,%rax
L58:
  mov    %esi,%ecx
  imul   (%rdx),%ecx
  add    %ecx,(%rax)
  add    $0x4,%rax
  add    $0x4,%rdx
  cmp    %rdi,%rdx
  jne    L58
L343:
  lea    0x1(%r8),%rax
  add    $0x4,%r9
  cmp    %r10,%r8
  je     L281
  mov    %rax,%r8
L289:
  test   %r13d,%r13d
  jg     L110
  jmp    L343
L281:
  mov    -0x27144(%rbp),%ebx
  movslq %ebx,%rax
  mov    -0x27150(%rbp),%rsi
  movb   $0x0,(%rsi,%rax,1)
  mov    -0x138c0(%rbp),%eax
  test   %eax,%eax
  je     L156
  movslq %ebx,%rdi
  add    %rsi,%rdi
  lea    -0x138bc(%rbp),%rcx
  mov    %rdi,%rsi
  mov    $0xcccccccd,%r8d
  add    $0x1,%edi
  jmp    L256
L251:
  mov    -0x4(%rcx),%eax
  mov    %eax,%edx
  imul   %r8,%rdx
  shr    $0x23,%rdx
  lea    (%rdx,%rdx,4),%edx
  add    %edx,%edx
  sub    %edx,%eax
  add    $0x30,%eax
  mov    %al,-0x1(%rsi)
  mov    %edi,%ebx
  sub    %esi,%ebx
  mov    (%rcx),%eax
  sub    $0x1,%rsi
  add    $0x4,%rcx
  test   %eax,%eax
  je     L313
L256:
  cmp    $0x9,%eax
  jbe    L251
  mov    %eax,%eax
  imul   %r8,%rax
  shr    $0x23,%rax
  add    %eax,(%rcx)
  jmp    L251
L156:
  mov    $0x0,%ebx
L313:
  test   %r15d,%r15d
  je     L181
  lea    0x2(%rbx),%edi
  call   <malloc@plt>
  mov    %rax,%r12
  lea    0x1(%rbx),%edx
  mov    -0x27144(%rbp),%esi
  sub    %ebx,%esi
  movslq %esi,%rsi
  add    -0x27150(%rbp),%rsi
  lea    0x1(%rax),%rdi
  call   <memcpy@plt>
  movb   $0x2d,(%r12)
  jmp    L12
L181:
  lea    0x1(%rbx),%r13d
  mov    %r13d,%edi
  call   <malloc@plt>
  mov    %rax,%r12
  mov    -0x27144(%rbp),%eax
  sub    %ebx,%eax
  cltq
  mov    -0x27150(%rbp),%rsi
  add    %rax,%rsi
  mov    %r13d,%edx
  mov    %r12,%rdi
  call   <memcpy@plt>
  jmp    L12
L105:
  lea    D28(%rip),%r12
  jmp    L12
L258:
  lea    D28(%rip),%r12
  jmp    L12
L336:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: tag: D28
type_guessed: string

tool: D28: 0

assistant: ```c
char *multi(char *number_a, char *number_b) {
  assert(number_a && number_b);
  int i, j, negtive = 0, nLen_a = strlen(number_a), nLen_b = strlen(number_b);
  if (number_a[0] == '-' || number_a[0] == '+') {
    if (number_a[0] == '-')
      negtive = !negtive;
    nLen_a--;
    number_a++;
  }
  if (number_b[0] == '-' || number_b[0] == '+') {
    if (number_b[0] == '-')
      negtive = !negtive;
    nLen_b--;
    number_b++;
  }
  for (i = 0; i < nLen_a; i++)
    if (number_a[i] != 0)
      break;
  if (i == nLen_a)
    return "0";
  for (i = 0; i < nLen_b; i++)
    if (number_b[i] != 0)
      break;
  if (i == nLen_b)
    return "0";
  char m[nLen_a + nLen_b + 1];
  unsigned a[10000];
  unsigned b[10000];
  unsigned result[10000 * 2];
  memset(a, 0, sizeof(a));
  memset(b, 0, sizeof(b));
  memset(result, 0, sizeof(result));
  for (j = 0, i = nLen_a - 1; i >= 0; i--)
    a[j++] = number_a[i] - '0';
  for (j = 0, i = nLen_b - 1; i >= 0; i--)
    b[j++] = number_b[i] - '0';
  for (i = 0; i < nLen_b; i++)
    for (j = 0; j < nLen_a; j++)
      result[i + j] += b[i] * a[j];
  j = nLen_a + nLen_b;
  m[j--] = '\0';
  for (i = 0; result[i] != 0; i++) {
    if (result[i] >= 10)
      result[i + 1] += result[i] / 10;
    m[j--] = (result[i] % 10) + '0';
  }
  char *r;
  if (negtive) {
    r = (char *)malloc(i + 2);
    memcpy(r + 1, m + (nLen_a + nLen_b - i), i + 1);
    r[0] = '-';
  } else {
    r = (char *)malloc(i + 1);
    memcpy(r, m + (nLen_a + nLen_b - i), i + 1);
  }
  return r;
}
```