#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, p, a;
  cin >> n;
  bool arr[n];
  for (bool &b : arr) {
    b = false;
  }
  cin >> p;
  for (int i = 0; i < p; i++) {
    cin >> a;
    arr[a - 1] = true;
  }
  cin >> p;
  for (int i = 0; i < p; i++) {
    cin >> a;
    arr[a - 1] = true;
  }
  for (const bool &b : arr) {
    if (!b) {
      cout << "Oh, my keyboard!";
      return 0;
    }
  }
  cout << "I become the guy.";
}
