#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(0);
  int x, y;
  while (cin >> x >> y) {
    while (true) {
      bool ok = false;
      if (x >= 2 && y >= 2) {
        x -= 2;
        y -= 2;
        ok = true;
      } else if (x >= 1 && y >= 12) {
        x--;
        y -= 12;
        ok = true;
      } else if (y >= 22) {
        y -= 22;
        ok = true;
      }
      if (!ok) {
        cout << "Hanako" << endl;
        break;
      }
      ok = false;
      if (y >= 22) {
        y -= 22;
        ok = true;
      } else if (x >= 1 && y >= 12) {
        x--;
        y -= 12;
        ok = true;
      } else if (x >= 2 && y >= 2) {
        x -= 2;
        y -= 2;
        ok = true;
      }
      if (!ok) {
        cout << "Ciel" << endl;
        break;
      }
    }
  }
  return 0;
}
