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

```asm
<readFile>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x28(%rbp)
  mov    %rsi,-0x30(%rbp)
  mov    %rdx,-0x38(%rbp)
  mov    %rcx,-0x40(%rbp)
  mov    %r8,-0x48(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x3,-0x10(%rbp)
  jmp    L11
L81:
  movzbl -0x11(%rbp),%eax
  mov    %al,-0xa(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <fgetc@plt>
  mov    %al,-0x11(%rbp)
  mov    D21(%rip),%rax
  movzbl (%rax),%eax
  cmp    %al,-0x11(%rbp)
  je     L11
  movzbl -0x11(%rbp),%eax
  mov    %al,-0x9(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <fgetc@plt>
  mov    %al,-0x11(%rbp)
  mov    D21(%rip),%rax
  movzbl (%rax),%eax
  cmp    %al,-0x11(%rbp)
  je     L11
  cmpl   $0x3,-0x10(%rbp)
  je     L121
  cmpl   $0x3,-0x10(%rbp)
  jg     L11
  cmpl   $0x2,-0x10(%rbp)
  je     L67
  cmpl   $0x2,-0x10(%rbp)
  jg     L11
  cmpl   $0x0,-0x10(%rbp)
  je     L145
  cmpl   $0x1,-0x10(%rbp)
  je     L78
  jmp    L11
L145:
  movzbl -0xa(%rbp),%edx
  movzbl -0x9(%rbp),%eax
  xor    %edx,%eax
  xor    -0x11(%rbp),%al
  movsbl %al,%eax
  mov    -0x30(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movzbl -0xa(%rbp),%eax
  movsbl %al,%eax
  mov    -0x38(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movzbl -0x9(%rbp),%eax
  movsbl %al,%eax
  mov    -0x40(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movsbl -0x11(%rbp),%eax
  mov    -0x48(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movl   $0x3,-0x10(%rbp)
  jmp    L11
L78:
  movzbl -0xa(%rbp),%eax
  movsbl %al,%eax
  mov    -0x30(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movzbl -0xa(%rbp),%edx
  movzbl -0x9(%rbp),%eax
  xor    %edx,%eax
  xor    -0x11(%rbp),%al
  movsbl %al,%eax
  mov    -0x38(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movzbl -0x9(%rbp),%eax
  movsbl %al,%eax
  mov    -0x40(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movsbl -0x11(%rbp),%eax
  mov    -0x48(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  subl   $0x1,-0x10(%rbp)
  jmp    L11
L67:
  movzbl -0xa(%rbp),%eax
  movsbl %al,%eax
  mov    -0x30(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movzbl -0x9(%rbp),%eax
  movsbl %al,%eax
  mov    -0x38(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movzbl -0xa(%rbp),%edx
  movzbl -0x9(%rbp),%eax
  xor    %edx,%eax
  xor    -0x11(%rbp),%al
  movsbl %al,%eax
  mov    -0x40(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movsbl -0x11(%rbp),%eax
  mov    -0x48(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  subl   $0x1,-0x10(%rbp)
  jmp    L11
L121:
  movzbl -0xa(%rbp),%eax
  movsbl %al,%eax
  mov    -0x30(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movzbl -0x9(%rbp),%eax
  movsbl %al,%eax
  mov    -0x38(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movsbl -0x11(%rbp),%eax
  mov    -0x40(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  movzbl -0xa(%rbp),%edx
  movzbl -0x9(%rbp),%eax
  xor    %edx,%eax
  xor    -0x11(%rbp),%al
  movsbl %al,%eax
  mov    -0x48(%rbp),%rdx
  mov    %rdx,%rsi
  mov    %eax,%edi
  call   <fputc@plt>
  subl   $0x1,-0x10(%rbp)
L11:
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <fgetc@plt>
  mov    %al,-0x11(%rbp)
  mov    D21(%rip),%rax
  movzbl (%rax),%eax
  cmp    %al,-0x11(%rbp)
  jne    L81
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L88
  call   <__stack_chk_fail@plt>
L88:
  leave
  ret
```

assistant: ```c
void readFile(FILE *f, FILE *out1, FILE *out2, FILE *out3, FILE *out4) {
  char get, save[2];
  int i = 3;
  while ((get = fgetc(f)) != EOF) {
    save[0] = get;
    if ((get = fgetc(f)) != EOF) {
      save[1] = get;
      if ((get = fgetc(f)) != EOF) {
        switch (i) {
        case 0:
          fputc((save[0] ^ save[1] ^ get), out1);
          fputc(save[0], out2);
          fputc(save[1], out3);
          fputc(get, out4);
          i = 3;
          break;
        case 1:
          fputc(save[0], out1);
          fputc((save[0] ^ save[1] ^ get), out2);
          fputc(save[1], out3);
          fputc(get, out4);
          i--;
          break;
        case 2:
          fputc(save[0], out1);
          fputc(save[1], out2);
          fputc((save[0] ^ save[1] ^ get), out3);
          fputc(get, out4);
          i--;
          break;
        case 3:
          fputc(save[0], out1);
          fputc(save[1], out2);
          fputc(get, out3);
          fputc((save[0] ^ save[1] ^ get), out4);
          i--;
        }
      }
    }
  }
}
```