#include <bits/stdc++.h>
#define REP(i, a, n) for(ll i = ((ll) a); i < ((ll) n); i++)
using namespace std;
typedef long long ll;

ll L, D;
ll memo[1000];

bool ok(ll l1, ll l2, ll l3, ll l) {
  if(l1 + l2 + l3 == l)
    if(l1 != l2 && l2 != l3 && l3 != l1)
      if(l1 > 0 && l2 > 0 && l3 > 0)
        if(max({ l1, l2, l3 }) - min({ l1, l2, l3 }) <= D)
         return true;
  return false;
}

ll grundy(ll l) {
  ll &g = memo[l];
  if(g >= 0) return g;
  set<ll> st;
  REP(i, 1, l + 1) REP(j, i + 1, l + 1) {
    ll k = l - i - j;
    if(ok(i, j, k, l)) st.insert(grundy(i) ^ grundy(j) ^ grundy(k));
  }
  g = 0;
  while(st.count(g)) g++;
  return g;
}

int main(void) {
  cin >> L >> D;

  REP(i, 0, 1000) memo[i] = -1;
  cout << (grundy(L) != 0 ? "kado" : "matsu") << endl;
}