#include <bits/stdc++.h>
using namespace std;
int ar[102];
int main() {
  int n, n1, n2, k;
  cin >> n;
  cin >> n1;
  for (int i = 0; i != n1; i++) {
    cin >> k;
    ar[k]++;
  }
  cin >> n2;
  for (int i = 0; i != n2; i++) {
    cin >> k;
    ar[k]++;
  }
  for (int i = 1; i <= n; i++) {
    if (ar[i] <= 0) {
      cout << "Oh, my keyboard!";
      return 0;
    }
  }
  cout << "I become the guy.";
}
