#include <bits/stdc++.h>
using namespace std;
int main() {
  ios_base::sync_with_stdio(false);
  vector<pair<int, int> > v, c, h;
  for (int i = 0; i < (3); ++i) {
    v.push_back(make_pair(i, (220 - i * 100) / 10));
  }
  sort((v).begin(), (v).end());
  h = v;
  reverse((v).begin(), (v).end());
  c = v;
  int x, y;
  while (cin >> x >> y) {
    int turn = 1;
    while (true) {
      bool ok = false;
      if (turn == 1) {
        for (int i = 0; i < (((int)(c).size())); ++i) {
          if (x >= c[i].first && y >= c[i].second) {
            x -= c[i].first;
            y -= c[i].second;
            ok = true;
            break;
          }
        }
      } else {
        for (int i = 0; i < (((int)(h).size())); ++i) {
          if (x >= h[i].first && y >= h[i].second) {
            x -= h[i].first;
            y -= h[i].second;
            ok = true;
            break;
          }
        }
      }
      if (ok == false) {
        break;
      }
      turn = -turn;
    }
    if (turn == 1) {
      cout << "Hanako" << endl;
    } else {
      cout << "Ciel" << endl;
    }
  }
}
