#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int p;
  cin >> p;
  set<int> possiblelevels;
  for (int i = 0; i < p; i++) {
    int currentlevel;
    cin >> currentlevel;
    possiblelevels.insert(currentlevel);
  }
  int q;
  cin >> q;
  for (int i = 0; i < q; i++) {
    int currentlevel;
    cin >> currentlevel;
    possiblelevels.insert(currentlevel);
  }
  if (possiblelevels.size() < n) {
    cout << "Oh, my keyboard!";
  } else {
    cout << "I become the guy.";
  }
}
