#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  long long a, b, k = 0;
  cin >> a >> b;
  long long c = a * 100 + (b * 10);
  while (a * 100 + (b * 10) > 219 && b > 1) {
    if (k % 2 == 0) {
      long long o = 0;
      if (a < 1) {
        b = b - 22;
      } else if (a < 2) {
        a--;
        b = b - 12;
      } else {
        a = a - 2;
        b = b - 2;
      }
    } else {
      if (b < 12) {
        a = a - 2;
        b = b - 2;
      } else if (b < 22) {
        a = a - 1;
        b = b - 12;
      } else {
        b = b - 22;
      }
    }
    k++;
  }
  if (k % 2 == 0) {
    cout << "Hanako";
  } else {
    cout << "Ciel";
  }
  return 0;
}
