#include<bits/stdc++.h>
using namespace std;

#define int long long
typedef pair<int,int>pint;
typedef vector<int>vint;
typedef vector<pint>vpint;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define all(v) (v).begin(),(v).end()
#define rep(i,n) for(int i=0;i<(n);i++)
#define reps(i,f,n) for(int i=(f);i<(n);i++)
#define each(it,v) for(__typeof((v).begin()) it=(v).begin();it!=(v).end();it++)
template<class T,class U>inline void chmin(T &t,U f){if(t>f)t=f;}
template<class T,class U>inline void chmax(T &t,U f){if(t<f)t=f;}

int memo[555];
int L,D;

int calc(int l){
    int &ret=memo[l];
    if(ret!=-1)return ret;
    ret=0;
    set<int>s;
    reps(l1,1,l){
        reps(l2,1,l){
            int l3=l-l1-l2;
            if(l3<=0)continue;
            if(l1==l2||l2==l3||l3==l1)continue;
            if(max(max(l1,l2),l3)-min(min(l1,l2),l3)>D)continue;
            s.insert(calc(l1)^calc(l2)^calc(l3));
        }
    }
    rep(i,1111){
        if(s.find(i)==s.end()){
            ret=i;
            return ret;
        }
    }
}

signed main(){
    cin>>L>>D;
    memset(memo,-1,sizeof(memo));
    if(calc(L))cout<<"kado"<<endl;
    else cout<<"matsu"<<endl;
    return 0;
}