#include <bits/stdc++.h>
using namespace std;
int n, p, q, d[110];
void nhap() {
  memset(d, 0, sizeof(d));
  int x;
  cin >> n >> p;
  for (int i = 1; i <= p; i++) {
    cin >> x;
    d[x] = 1;
  }
  cin >> q;
  for (int i = 1; i <= q; i++) {
    cin >> x;
    d[x] = 1;
  }
}
void cbi() {
  for (int i = 1; i <= n; i++)
    if (!d[i]) {
      cout << "Oh, my keyboard!";
      exit(0);
    }
  cout << "I become the guy.";
}
void xuli() {}
void ghikq() {}
int main() {
  nhap();
  cbi();
  xuli();
  ghikq();
  return 0;
}
