#include <bits/stdc++.h>
using namespace std;
bool a[1010];
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  int n;
  cin >> n;
  int t;
  cin >> t;
  for (int i = 0; i < t; i++) {
    int x;
    cin >> x;
    if (a[x] == false) a[x] = true;
  }
  int y;
  cin >> y;
  for (int i = 0; i < y; i++) {
    int x;
    cin >> x;
    if (a[x] == false) a[x] = true;
  }
  for (int i = 1; i <= n; i++) {
    if (a[i] == false) {
      cout << "Oh, my keyboard!";
      return 0;
    }
  }
  cout << "I become the guy.";
  return 0;
}
