#include <stdio.h>

struct Test {
  int a;
  char st[10];
};

int main() {
  printf("Hello world!\n");

  struct Test ar[10];
  struct Test b;
  printf("Let's index out of bounds \n");
  ar[10].a=10;
  printf("Did you notice?\n");

  printf("There should be 1 error in this run\n");
  return 0;

}