import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		int L = scanner.nextInt();
		int D = scanner.nextInt();
		System.out.println(new Solver().solve(L, D));
	}
}

class Solver {

	public String solve(int l, int d) {
		if (win(l, d)) {
			return "kado";
		}
		return "matsu";
	}

	private boolean win(int l, final int d) {
		for (int i = 1; i < l - 2; i++) {
			for (int j = i + 1; j < l - 1; j++) {
				int k = l - i - j;
				if (i <= 0 || j <= 0 || k <= 0)
					continue;
				if (i == j || i == k || j == k)
					continue;
				if (Math.max(i, Math.max(j, k)) - Math.min(i, Math.min(j, k)) > d)
					continue;

				if (!win(i, d) && !win(j, d) && !win(k, d))
					return true;
			}
		}
		return false;
	}

}