#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int X, Y;
  cin >> X >> Y;
  int turn = 0;
  vector<pair<int, int>> a[2] = {
      {make_pair(2, 2), make_pair(1, 12), make_pair(0, 22)},
      {make_pair(0, 22), make_pair(1, 12), make_pair(2, 2)}};
  while (1) {
    bool ok = 0;
    for (const auto& move : a[turn]) {
      int x, y;
      tie(x, y) = move;
      if (x <= X && y <= Y) {
        X -= x;
        Y -= y;
        ok = 1;
        break;
      }
    }
    if (!ok) {
      break;
    }
    turn ^= 1;
  }
  cout << (turn ? "Ciel" : "Hanako") << endl;
}
