#include <bits/stdc++.h>
using namespace std;
int n, m;
int turn = -1;
int main(int argc, char *argv[]) {
  cin >> n >> m;
  while (true) {
    if (turn == -1) {
      if (n >= 2 && m >= 2) {
        n -= 2;
        m -= 2;
      } else if (n >= 1 && m >= 12) {
        n -= 1;
        m -= 12;
      } else if (n >= 0 && m >= 22) {
        m -= 22;
      } else {
        cout << "Hanako" << endl;
        return 0;
      }
    } else {
      if (n >= 0 && m >= 22) {
        m -= 22;
      } else if (n >= 1 && m >= 12) {
        n -= 1;
        m -= 12;
      } else if (n >= 2 && m >= 2) {
        n -= 2;
        m -= 2;
      } else {
        cout << "Ciel" << endl;
        return 0;
      }
    }
    turn *= -1;
  }
  return 0;
}
