#include <bits/stdc++.h>
using namespace std;
int n, p, x, f[100000], a;
int main() {
  cin >> n;
  cin >> p;
  int pp[p + 1];
  for (int i = 1; i <= p; i++) {
    cin >> pp[i];
    f[pp[i]]++;
  }
  cin >> x;
  int xx[x + 1];
  for (int i = 1; i <= x; i++) {
    cin >> xx[i];
    f[xx[i]]++;
  }
  for (int i = 1; i <= n; i++) {
    if (f[i] >= 1) {
      a++;
    } else {
      cout << "Oh, my keyboard!";
      return 0;
    }
  }
  if (a >= n) {
    cout << "I become the guy.";
  }
  return 0;
}
