#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
#include <unistd.h>

int main(int argc, char *argv[]) {

  char str[100] = {};
  read(0, str, 100);
  int *ptr = NULL;
  if (str[0] == '\x02' || str[0] == '\xe8') { *ptr = 123; }
  return 0;

}

