Replace "?" with a integer so that output is 4.

  int main() {
    int arr[7];
    int b,c,d,a;
    a=4;
    printf("%d",arr[?]);
    return 0;
  }

Input

No input.

Output

Write only one integer as the answer. And submit as TEXT.

Note: Don't submit whole program and assume no optimization by compiler.