#include <bits/stdc++.h>
#define rep(a,n) for (ll a = 0; a < (n); ++a)
using namespace std;
using ll = long long;
typedef pair<ll,ll> P;
typedef pair<P,ll> PP;
typedef vector<vector<ll> > Graph;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
const ll INF = 1e18;

//入力
ll l,d;

vector<ll>g;

ll grundy(ll l){
    if(g[l]>=0)return g[l];
    set<ll>st;
    for(int i=1;i<l;i++){
        for(int j=i+1;j<l;j++){
            int r = l-i-j;
            if(r-i<=d && i<j && j<r){
                ll g1 = grundy(i);
                ll g2 = grundy(j);
                ll g3 = grundy(r);
                ll now = g1^g2^g3;
                st.insert(now);
            }
        }
    }
    int res = 0;
    while(st.count(res))res++;
    return g[l]=res;
}

int main(){
    cin >> l >> d;
    g.resize(l+1,-1);
    if(grundy(l)==0){
        cout << "matsu" << endl;
    }
    else{
        cout << "kado" << endl;
    }

    return 0;
    
}