#include <bits/stdc++.h>
using namespace std;
int main() {
  int x, y;
  cin >> x >> y;
  int step = 1;
  while (true) {
    if (step == 1) {
      int remaining = 220;
      if (x >= 2) {
        remaining = 20;
        x -= 2;
      } else if (x == 1) {
        remaining = 120;
        x--;
      }
      int two = remaining / 10;
      if (two > y) {
        cout << "Hanako" << endl;
        break;
      } else {
        y -= two;
      }
      step = 2;
    } else {
      int remaining = 220;
      if (y >= 22) {
        remaining = 0;
        y -= 22;
        step = 1;
        continue;
      } else if (y >= 12 && x >= 1) {
        y -= 12;
        x--;
        step = 1;
        continue;
      } else if (y >= 2 && x >= 2) {
        y -= 2;
        x -= 2;
        step = 1;
        continue;
      } else {
        cout << "Ciel" << endl;
        break;
      }
      step = 1;
    }
  }
}
