#include <bits/stdc++.h>
using namespace std;
long long v[112];
int32_t main() {
  cout.precision(12);
  cout.setf(ios::fixed);
  ios::sync_with_stdio(false);
  cin.tie(0);
  long long n;
  cin >> n;
  long long m;
  cin >> m;
  for (long long i = 0; i < m; i++) {
    long long a;
    cin >> a;
    v[a]++;
  }
  cin >> m;
  for (long long i = 0; i < m; i++) {
    long long a;
    cin >> a;
    v[a]++;
  }
  for (long long i = 1; i <= n; i++) {
    if (v[i] == 0) {
      cout << "Oh, my keyboard!" << endl;
      return 0;
    }
  }
  cout << "I become the guy." << endl;
}
