Problem: <image>

You have one chip and one chance to play roulette. Are you feeling lucky?

Output

Print your bet. Your chip must be placed entirely within some square (not on an edge or a corner shared by adjacent squares).

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
const int inf = 0x3f3f3f3f;
const long long llinf = 0x3f3f3f3f3f3f3f3f;
template <typename INint>
inline void IN(INint &first) {
  first = 0;
  int f = 1;
  char c;
  cin.get(c);
  while (c < '0' || c > '9') {
    if (c == '-') f = -1;
    cin.get(c);
  }
  while (c >= '0' && c <= '9') {
    first = first * 10 + c - '0';
    cin.get(c);
  }
  first *= f;
}
template <typename INint>
inline void OUT(INint first) {
  if (first > 9) OUT(first / 10);
  cout.put(first % 10 + '0');
}
const int maxn = int(-1);
int a[] = {1, 3, 5, 7, 9, 12, 14, 16, 18, 19, 21, 23, 25, 27, 30, 32, 34, 36};
int main() {
  int T(1), times(0);
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  while (++times, T--) {
    set<int> S;
    for (int i = 0; i < int(18); i++) S.insert(a[i]);
    int n;
    cin >> n;
    if (S.count(n))
      cout << "Red" << endl;
    else
      cout << "Black" << endl;
  }
  return 0;
}