user: What would the C source look like for the assembly code provided here:

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x2f8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x2e8(%rsp)
  xor    %eax,%eax
  mov    $0x2bc,%edi
  call   <malloc@plt>
  mov    %rax,%r13
  mov    $0x2bc,%edi
  call   <malloc@plt>
  mov    %rax,%r14
  lea    0x20(%rsp),%rax
  mov    %rax,0x18(%rsp)
  lea    0x2dc(%rsp),%rdx
L37:
  movb   $0x30,(%rax)
  add    $0x1,%rax
  cmp    %rdx,%rax
  jne    L37
  mov    %r14,%rdx
  mov    %r13,%rsi
  lea    D5(%rip),%rdi
  call   <scanf@plt>
  mov    $0x0,%r15d
  cmpb   $0x2d,0x0(%r13)
  je     L95
L91:
  movl   $0x0,0x8(%rsp)
  cmpb   $0x2d,(%r14)
  je     L317
L169:
  mov    %r13,%rdi
  call   <strlen@plt>
  mov    %eax,%esi
  mov    %r13,%rdi
  call   <resort@plt>
  mov    %r14,%rdi
  call   <strlen@plt>
  mov    %eax,%esi
  mov    %r14,%rdi
  call   <resort@plt>
  mov    %r14,%rdi
  call   <strlen@plt>
  mov    %eax,%ebx
  mov    %r13,%rdi
  call   <strlen@plt>
  mov    %eax,%edi
  mov    %ebx,%esi
  call   <max@plt>
  mov    %eax,%ebp
  test   %eax,%eax
  jle    L140
  mov    %eax,%eax
  mov    %rax,0x10(%rsp)
  mov    0x18(%rsp),%rbx
  mov    $0x0,%r12d
  movl   $0x0,0x4(%rsp)
  jmp    L263
L95:
  add    $0x1,%r13
  mov    $0x1,%r15d
  jmp    L91
L317:
  add    $0x1,%r14
  movl   $0x1,0x8(%rsp)
  jmp    L169
L89:
  movzbl 0x0(%r13,%r12,1),%eax
  sub    $0x30,%eax
  add    %al,(%rbx)
  jmp    L178
L348:
  movzbl (%r14,%r12,1),%eax
  sub    $0x30,%eax
  add    %al,(%rbx)
L46:
  movzbl 0x4(%rsp),%eax
  add    (%rbx),%al
  mov    %al,(%rbx)
  cmp    $0x39,%al
  jle    L41
  sub    $0xa,%eax
  mov    %al,(%rbx)
  movl   $0x1,0x4(%rsp)
L291:
  add    $0x1,%r12
  add    $0x1,%rbx
  cmp    0x10(%rsp),%r12
  je     L144
L263:
  mov    %r13,%rdi
  call   <strlen@plt>
  mov    %r12d,0xc(%rsp)
  cmp    %r12d,%eax
  jle    L178
  cmp    0x8(%rsp),%r15d
  je     L89
  test   %r15d,%r15d
  je     L89
  movzbl (%rbx),%eax
  sub    0x0(%r13,%r12,1),%al
  add    $0x30,%eax
  mov    %al,(%rbx)
L178:
  mov    %r14,%rdi
  call   <strlen@plt>
  cmp    0xc(%rsp),%eax
  jle    L46
  mov    0x8(%rsp),%eax
  cmp    %eax,%r15d
  je     L348
  test   %eax,%eax
  je     L348
  movzbl (%rbx),%eax
  sub    (%r14,%r12,1),%al
  add    $0x30,%eax
  mov    %al,(%rbx)
  jmp    L46
L41:
  cmp    $0x2f,%al
  jg     L438
  add    $0xa,%eax
  mov    %al,(%rbx)
  movl   $0xffffffff,0x4(%rsp)
  jmp    L291
L438:
  movl   $0x0,0x4(%rsp)
  jmp    L291
L335:
  sub    $0x1,%ebp
  cmpl   $0x0,0x4(%rsp)
  js     L418
L437:
  test   %r15d,%r15d
  je     L258
  cmpl   $0x0,0x8(%rsp)
  jne    L418
  jmp    L258
L84:
  cmpb   $0x30,(%rax)
  jne    L110
  sub    $0x1,%rax
  sub    $0x1,%ebp
  js     L110
L8:
  test   %ebp,%ebp
  jne    L84
  test   %edx,%edx
  je     L84
  lea    D2(%rip),%rdi
  call   <puts@plt>
  jmp    L343
L333:
  movsbl (%rbx),%edi
  call   <putchar@plt>
  sub    $0x1,%rbx
  cmp    %r12,%rbx
  je     L254
L78:
  test   %bpl,%bpl
  je     L333
  cmp    0x8(%rsp),%r15d
  je     L333
  mov    $0x69,%eax
  sub    (%rbx),%al
  mov    %al,(%rbx)
  jmp    L333
L254:
  mov    %r13,%rdi
  call   <free@plt>
  mov    %r14,%rdi
  call   <free@plt>
L343:
  mov    0x2e8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L303
  mov    $0x0,%eax
  add    $0x2f8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L110:
  test   %r15d,%r15d
  je     L154
  movl   $0x0,0x4(%rsp)
  cmpl   $0x0,0x8(%rsp)
  je     L154
L418:
  mov    $0x2d,%edi
  call   <putchar@plt>
L258:
  cmpl   $0x0,0x4(%rsp)
  jle    L393
  mov    $0x31,%edi
  call   <putchar@plt>
L393:
  test   %ebp,%ebp
  js     L254
  movslq %ebp,%rax
  lea    0x20(%rsp,%rax,1),%rbx
  mov    0x18(%rsp),%rsi
  lea    -0x1(%rsi,%rax,1),%rax
  mov    %ebp,%ebp
  sub    %rbp,%rax
  mov    %rax,%r12
  mov    0x4(%rsp),%ebp
  shr    $0x1f,%ebp
  jmp    L78
L154:
  movl   $0x0,0x4(%rsp)
  jmp    L393
L144:
  cmpl   $0x0,0x4(%rsp)
  jne    L335
L50:
  movslq %ebp,%rax
  lea    0x20(%rsp,%rax,1),%rax
  mov    0x8(%rsp),%edx
  or     %r15d,%edx
  jmp    L8
L140:
  je     L50
  movl   $0x0,0x4(%rsp)
  jmp    L437
L303:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: extract_symbolic_data
arguments: label: D5
type: string
name: extract_symbolic_data
arguments: label: D2
type: string

tool: D5: %s%s

tool: D2: 0

assistant: ```c
int main() {
  char *a, *b;
  char c[700];
  int i, mark = 0, a0 = 0, b0 = 0;
  a = (char *)malloc(700 * sizeof(char));
  b = (char *)malloc(700 * sizeof(char));
  for (i = 0; i < sizeof(c); i++)
    c[i] = '0';
  scanf("%s%s", a, b);
  if (a[0] == '-') {
    a0 = 1;
    a++;
  }
  if (b[0] == '-') {
    b0 = 1;
    b++;
  }
  resort(a, strlen(a));
  resort(b, strlen(b));
  int size = max(strlen(a), strlen(b));
  for (i = 0; i < size; i++) {
    if (i < strlen(a)) {
      if (!(a0 == b0) && a0)
        c[i] -= a[i] - '0';
      else
        c[i] += a[i] - '0';
    }
    if (i < strlen(b)) {
      if (!(a0 == b0) && b0)
        c[i] -= b[i] - '0';
      else
        c[i] += b[i] - '0';
    }
    c[i] += mark;
    mark = 0;
    if (c[i] > '9') {
      c[i] -= 10;
      mark = 1;
    }
    if (c[i] < '0') {
      c[i] += 10;
      mark = -1;
    }
  }
  for (i = size; i >= 0; i--) {
    if (mark) {
      i--;
      break;
    }
    if (i == 0 && (a0 || b0)) {
      puts("0");
      return 0;
    }
    if (c[i] != '0')
      break;
  }
  if (mark < 0 || a0 && b0)
    printf("-");
  if (mark > 0)
    printf("1");
  for (; i >= 0; i--) {
    if (mark < 0 && (a0 != b0))
      c[i] = '9' - (c[i] - '0');
    printf("%c", c[i]);
  }
  free(a);
  free(b);
  return 0;
}
```