#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(0), cin.tie(0);
  int n;
  cin >> n;
  int ar[n + 1];
  memset(ar, 0, sizeof(ar));
  int m;
  cin >> m;
  for (long long int(i) = (0); (i) < (m); (i)++) {
    int z;
    cin >> z;
    ar[z]++;
  }
  int k;
  cin >> k;
  for (long long int(i) = (0); (i) < (k); (i)++) {
    int x;
    cin >> x;
    ar[x]++;
  }
  int flag = 0;
  for (long long int(i) = (1); (i) < (n + 1); (i)++) {
    if (ar[i] == 0) {
      cout << "Oh, my keyboard!\n";
      flag = 1;
      break;
    }
  }
  if (flag == 0) cout << "I become the guy.\n";
}
