#include <bits/stdc++.h>
using namespace std;
int main() {
    int L,D;
    cin >> L >> D;
    vector<int> gr(L+1,0);
    for(int l = 0; l <= L; l++){
        unordered_set<int> memo;
        for(int l1 = 1; l1 < l; l1++)
            for(int l2 = l1 + 1; l - (l1 + l2) > l2 && l - (l1 + l2) - l1 <= D; l2++){
                int l3 = l - (l1 + l2);
                memo.insert(gr[l1] ^ gr[l2] ^ gr[l3]);
            }
        int v = 0;
        while(memo.count(v))v++;
        gr[l] = v;
    }
    cout << ((gr[L])?"kado":"matsu") << endl;
    return 0;
}