#include <bits/stdc++.h>
using namespace std;
int main() {
  long long int x, y;
  cin >> x >> y;
  long long int sum = (100 * x) + (10 * y);
  long long int count = 0;
  while (sum >= 220) {
    if (count % 2 == 0) {
      if (x >= 2 && y >= 2) {
        x = x - 2;
        y = y - 2;
      } else if (x == 1 && y >= 12) {
        x = x - 1;
        y = y - 12;
      } else if (x == 0 && y >= 22) {
        y = y - 22;
      } else if (x > 2 && y < 2) {
        count++;
        x = -100000000;
      }
    } else {
      if (y >= 22) {
        y = y - 22;
      } else if (x >= 1 && y >= 12) {
        x = x - 1;
        y = y - 12;
      } else if (x >= 2 && y >= 2) {
        x = x - 2;
        y = y - 2;
      } else if (x > 2 && y < 2) {
        count++;
        x = -10000000;
      }
    }
    sum = (100 * x) + (10 * y);
    count++;
  }
  if (count % 2 != 0) {
    cout << "Ciel";
  } else {
    cout << "Hanako";
  }
  return 0;
}
