using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.Text.RegularExpressions;
using System.Linq;
using System.IO;

class Program
{
    static void Main()
    {
        new Magatro().Solve();
    }
}

class Magatro
{
    private int L, D;
    private int[] Grundy = (new int[501]).Select(i => -1).ToArray();
    private void Scan()
    {
        var line = Console.ReadLine().Split(' ');
        L = int.Parse(line[0]);
        D = int.Parse(line[1]);
    }

    private int G(int n)
    {
        if (Grundy[n] != -1)
        {
            return Grundy[n];
        }



        bool[] b = new bool[501];
        for (int i = 1; i <= n; i++)
        {
            for (int j = i + 1; j <= n; j++)
            {
                int k = n - i - j;
                if (i >= j || j >= k)
                {
                    continue;
                }
                if (k - i > D)
                {
                    continue;
                }
                int next = G(i) ^ G(j) ^ G(k);
                b[next] = true;
            }
        }
        int result = 0;
        while (b[result])
        {
            result++;
        }
        Grundy[n] = result;
        return result;
    }

    public void Solve()
    {
        Scan();
        Grundy[1] = 0;
        Console.WriteLine(G(L) == 0 ? "matsu" : "kado");
    }
}