user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<main>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x18(%rsp)
  xor    %eax,%eax
  mov    $0x32,%edi
  call   <malloc@plt>
  mov    %rax,0x8(%rsp)
  lea    D57(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    0x14(%rsp),%rsi
  lea    D21(%rip),%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  mov    0x14(%rsp),%ebx
  movslq %ebx,%rdi
  shl    $0x3,%rdi
  call   <malloc@plt>
  mov    %rax,%rbp
  test   %ebx,%ebx
  jle    L121
  mov    %rax,%r12
  mov    %ebx,%ebx
  lea    (%rax,%rbx,8),%r13
L20:
  mov    $0x10,%edi
  call   <malloc@plt>
  mov    %rax,%rbx
  mov    %rax,(%r12)
  mov    $0x32,%edi
  call   <malloc@plt>
  mov    %rax,(%rbx)
  mov    $0x32,%edi
  call   <malloc@plt>
  mov    %rax,0x8(%rbx)
  add    $0x8,%r12
  cmp    %r12,%r13
  jne    L20
L121:
  lea    D98(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  cmpl   $0x0,0x14(%rsp)
  jle    L33
  mov    $0x0,%ebx
  lea    D93(%rip),%r13
L73:
  mov    0x0(%rbp,%rbx,8),%r12
  mov    (%r12),%rsi
  mov    %r13,%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  mov    0x8(%r12),%rsi
  mov    %r13,%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  add    $0x1,%rbx
  cmp    %ebx,0x14(%rsp)
  jg     L73
L33:
  lea    D78(%rip),%rdi
  call   <puts@plt>
  cmpl   $0x0,0x14(%rsp)
  jle    L110
  mov    $0x0,%ebx
  lea    D69(%rip),%r13
  lea    D117(%rip),%r14
L90:
  mov    $0x3c,%edi
  call   <putchar@plt>
  mov    0x0(%rbp,%rbx,8),%r12
  mov    (%r12),%rsi
  mov    %r13,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    0x8(%r12),%rsi
  mov    %r13,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    %r14,%rdi
  call   <puts@plt>
  add    $0x1,%rbx
  cmp    %ebx,0x14(%rsp)
  jg     L90
L110:
  lea    D58(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    0x8(%rsp),%rbx
  mov    %rbx,%rsi
  lea    D30(%rip),%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  mov    %rbx,%rsi
  lea    D115(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  cmpl   $0x0,0x14(%rsp)
  jle    L52
  mov    $0x0,%r14d
  mov    $0x0,%r15d
  jmp    L98
L28:
  add    $0x1,%rbx
  cmp    %ebx,0x14(%rsp)
  jle    L21
L105:
  mov    0x0(%rbp,%rbx,8),%r12
  mov    0x8(%r12),%rdi
  mov    0x0(%r13),%rsi
  call   <strcmp@plt>
  test   %eax,%eax
  jne    L28
  mov    (%r12),%rsi
  lea    D92(%rip),%rdi
  call   <printf@plt>
  add    $0x1,%r15d
  jmp    L28
L21:
  add    $0x1,%r14
  cmp    %r14d,0x14(%rsp)
  jle    L108
L98:
  mov    0x0(%rbp,%r14,8),%r13
  mov    0x8(%r13),%rdi
  mov    0x8(%rsp),%rsi
  call   <strcmp@plt>
  test   %eax,%eax
  jne    L21
  cmpl   $0x0,0x14(%rsp)
  jle    L21
  mov    $0x0,%ebx
  jmp    L105
L52:
  mov    $0x0,%r15d
L108:
  mov    %r15d,%esi
  lea    D77(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    %rbp,%rdi
  call   <free@plt>
  mov    0x8(%rsp),%rdi
  call   <free@plt>
  mov    0x18(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L6
  mov    $0x0,%eax
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L6:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_label: D57
type: string
name: parse_data
arguments: data_label: D21
type: string
name: parse_data
arguments: data_label: D98
type: string
name: parse_data
arguments: data_label: D93
type: string
name: parse_data
arguments: data_label: D78
type: string
name: parse_data
arguments: data_label: D69
type: string
name: parse_data
arguments: data_label: D117
type: string
name: parse_data
arguments: data_label: D58
type: string
name: parse_data
arguments: data_label: D30
type: string
name: parse_data
arguments: data_label: D115
type: string
name: parse_data
arguments: data_label: D92
type: string
name: parse_data
arguments: data_label: D77
type: string

tool: D57: Enter the number of pair : 

tool: D21: %d

tool: D98: Enter the strings : 

tool: D93:  %s

tool: D78: The Array is : 

tool: D69: %-10s 

tool: D117: >

tool: D58: Enter the string : 

tool: D30: %s

tool: D115: Grandchildren of %s :  

tool: D92: %s 

tool: D77: 
Number of grandchildren  :  %d


assistant: ```c
int main(void) {
  char *str, ***a;
  str = malloc(50);
  int n, i, j, c = 0;
  printf("Enter the number of pair : ");
  scanf("%d", &n);
  a = malloc(sizeof(char *) * n);
  for (i = 0; i < n; i++) {
    a[i] = malloc(sizeof(char *) * 2);
    for (j = 0; j < 2; j++)
      a[i][j] = malloc(sizeof(char) * 50);
  }
  printf("Enter the strings : ");
  for (i = 0; i < n; i++) {
    for (j = 0; j < 2; j++)
      scanf(" %s", a[i][j]);
  }
  printf("The Array is : \n");
  for (i = 0; i < n; i++) {
    printf("<");
    for (j = 0; j < 2; j++)
      printf("%-10s ", a[i][j]);
    printf(">\n");
  }
  printf("Enter the string : ");
  scanf("%s", str);
  printf("Grandchildren of %s :  ", str);
  for (i = 0; i < n; i++)
    if (strcmp(a[i][1], str) == 0)
      for (j = 0; j < n; j++)
        if (strcmp(a[j][1], a[i][0]) == 0) {
          printf("%s ", a[j][0]);
          c++;
        }
  printf("\nNumber of grandchildren  :  %d\n", c);
  free(a);
  free(str);
  return 0;
}
```