#include <bits/stdc++.h>
using namespace std;
int main(int argc, char** argv) {
  int n, p, q, x;
  cin >> n;
  vector<bool> s(n + 1);
  s[0] = true;
  cin >> p;
  for (int i = 0; i < p; ++i) {
    cin >> x;
    s[x] = true;
  }
  cin >> q;
  for (int i = 0; i < q; ++i) {
    cin >> x;
    s[x] = true;
  }
  for (int i = 0; i <= n; ++i) {
    if (!s[i]) {
      cout << "Oh, my keyboard!" << endl;
      return 0;
    }
  }
  cout << "I become the guy." << endl;
}
