user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %r13
  push   %r12
  push   %rbx
  sub    $0xb8,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x28(%rbp)
  xor    %eax,%eax
L111:
  lea    0x61(%rax),%edx
  mov    %dl,-0x50(%rbp,%rax,1)
  mov    %eax,-0xc0(%rbp,%rax,4)
  add    $0x1,%rax
  cmp    $0x1a,%rax
  jne    L111
  lea    -0xc4(%rbp),%rdx
  lea    -0xc8(%rbp),%rsi
  lea    D2(%rip),%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  mov    -0xc8(%rbp),%eax
  add    $0x1,%eax
  cltq
  add    $0xf,%rax
  mov    %rax,%rcx
  and    $0xfffffffffffffff0,%rcx
  and    $0xfffffffffffff000,%rax
  mov    %rsp,%rdx
  sub    %rax,%rdx
L68:
  cmp    %rdx,%rsp
  je     L35
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L68
L35:
  mov    %rcx,%rax
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  je     L72
  orq    $0x0,-0x8(%rsp,%rax,1)
L72:
  mov    %rsp,%rbx
  mov    %rsp,%rsi
  lea    D16(%rip),%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  mov    -0xc8(%rbp),%ecx
  lea    0x1(%rcx),%eax
  cltq
  lea    0xf(,%rax,8),%rax
  mov    %rax,%rsi
  and    $0xfffffffffffffff0,%rsi
  and    $0xfffffffffffff000,%rax
  mov    %rsp,%rdx
  sub    %rax,%rdx
L67:
  cmp    %rdx,%rsp
  je     L95
  sub    $0x1000,%rsp
  orq    $0x0,0xff8(%rsp)
  jmp    L67
L95:
  mov    %rsi,%rax
  and    $0xfff,%eax
  sub    %rax,%rsp
  test   %rax,%rax
  je     L14
  orq    $0x0,-0x8(%rsp,%rax,1)
L14:
  mov    %rsp,%r12
  test   %ecx,%ecx
  jle    L104
  mov    %ecx,%ecx
  mov    $0x0,%eax
  lea    -0x50(%rbp),%rsi
L3:
  movsbq (%rbx,%rax,1),%rdx
  lea    -0x61(%rsi,%rdx,1),%rdx
  mov    %rdx,(%r12,%rax,8)
  add    $0x1,%rax
  cmp    %rcx,%rax
  jne    L3
L104:
  cmpl   $0x0,-0xc4(%rbp)
  jle    L23
  mov    $0x0,%ebx
  lea    D27(%rip),%r13
L75:
  lea    -0xc9(%rbp),%rdx
  lea    -0xca(%rbp),%rsi
  mov    %r13,%rdi
  mov    $0x0,%eax
  call   <scanf@plt>
  movzbl -0xc9(%rbp),%edi
  movsbl %dil,%edx
  sub    $0x61,%edx
  movslq %edx,%rdx
  mov    -0xc0(%rbp,%rdx,4),%esi
  movzbl -0xca(%rbp),%eax
  movslq %esi,%rcx
  mov    %al,-0x50(%rbp,%rcx,1)
  movsbl %al,%eax
  sub    $0x61,%eax
  cltq
  mov    -0xc0(%rbp,%rax,4),%ecx
  movslq %ecx,%r8
  mov    %dil,-0x50(%rbp,%r8,1)
  mov    %esi,-0xc0(%rbp,%rax,4)
  mov    %ecx,-0xc0(%rbp,%rdx,4)
  add    $0x1,%ebx
  cmp    %ebx,-0xc4(%rbp)
  jg     L75
L23:
  cmpl   $0x0,-0xc8(%rbp)
  jle    L12
  mov    $0x0,%ebx
L106:
  mov    (%r12,%rbx,8),%rax
  movsbl (%rax),%edi
  call   <putchar@plt>
  add    $0x1,%rbx
  cmp    %ebx,-0xc8(%rbp)
  jg     L106
L12:
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    -0x28(%rbp),%rax
  sub    %fs:0x28,%rax
  jne    L62
  mov    $0x0,%eax
  lea    -0x18(%rbp),%rsp
  pop    %rbx
  pop    %r12
  pop    %r13
  pop    %rbp
  ret
L62:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: parse_data
arguments: data_tag: D2
type_guessed: string
name: parse_data
arguments: data_tag: D16
type_guessed: string
name: parse_data
arguments: data_tag: D27
type_guessed: string

tool: D2: %d %d

tool: D16: %s

tool: D27:  %c %c

assistant: ```c
int main(void) {
  char alphabet[26];
  int pos[26];
  int n, m;
  int i, j;
  for (i = 0; i < 26; i++) {
    alphabet[i] = 'a' + i;
    pos[i] = i;
  }
  scanf("%d %d", &n, &m);
  char s[n + 1];
  scanf("%s", s);
  char *a[n + 1];
  for (i = 0; i < n; i++) {
    a[i] = alphabet + (s[i] - 'a');
  }
  for (i = 0; i < m; i++) {
    char x, y;
    scanf(" %c %c", &x, &y);
    alphabet[pos[y - 'a']] = x;
    alphabet[pos[x - 'a']] = y;
    int temp = pos[x - 'a'];
    pos[x - 'a'] = pos[y - 'a'];
    pos[y - 'a'] = temp;
  }
  for (j = 0; j < n; j++) {
    printf("%c", *(a[j]));
  }
  printf("\n");
  return 0;
}
```