Bus Game

import java.io.*;

public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String[] s = br.readLine().split(" ");
        long x = Long.parseLong(s[0]); // 100-yen coins
        long y = Long.parseLong(s[1]); // 10-yen coins

        boolean cielTurn = true;

        while (true) {
            boolean moved = false;

            if (cielTurn) {
                if (x >= 2 && y >= 2) { x -= 2; y -= 2; moved = true; }
                else if (x >= 1 && y >= 12) { x -= 1; y -= 12; moved = true; }
                else if (y >= 22) { y -= 22; moved = true; }
            } else {
                if (y >= 22) { y -= 22; moved = true; }
                else if (x >= 1 && y >= 12) { x -= 1; y -= 12; moved = true; }
                else if (x >= 2 && y >= 2) { x -= 2; y -= 2; moved = true; }
            }

            if (!moved) {
                System.out.print(cielTurn ? "Hanako" : "Ciel");
                return;
            }

            cielTurn = !cielTurn;
        }
    }
}