#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  bool a[n + 1], e = 0;
  int i = 0;
  int b, c, d = 0;
  while (i < (n + 1)) {
    a[i] = 0;
    i++;
  }
  cin >> b;
  d += b;
  i = 0;
  while (i < b) {
    cin >> c;
    a[c] = 1;
    i++;
  }
  i = 0;
  cin >> b;
  d += b;
  while (i < b) {
    cin >> c;
    a[c] = 1;
    i++;
  }
  if (d >= n) {
    i = 1;
    while (i < (n + 1)) {
      if (a[i] == 0) {
        e = 1;
        break;
      }
      i++;
    }
    if (e == 1)
      cout << "Oh, my keyboard!";
    else
      cout << "I become the guy.";
  } else
    cout << "Oh, my keyboard!";
  return 0;
}
