#include <bits/stdc++.h>
using namespace std;
typedef long long int64;

int dp[501];
int L, D;

int rec(int val)
{
  if(val <= 5) return(false);
  if(~dp[val]) return(dp[val]);
  for(int i = 1; i <= val; i++) {
    for(int j = i + 1; i + j <= val; j++) {
      int k = val - i - j;
      if(k <= j) continue;
      if(k - i > D) continue;
      int proc = rec(i) + rec(j) + rec(k);
      if(proc == 0) return(true);
      if(proc == 2) return(true);
    }
  }
  return(dp[val] = false);
}

int main()
{
  memset(dp, -1, sizeof(dp));

  cin >> L >> D;
  if(rec(L)) cout << "kado" << endl;
  else cout << "matsu" << endl;
}