#include <iostream>
#include <vector>
using namespace std;

int main() {
	int l, d;
	vector< int > memo(500,-1);
	vector< int > table(500,0);
	
	cin >> l >> d;
	
	for(int i=0;i<5;++i){
		memo[i] = 0;
	}
	
	for(int i=5;i<l;++i){
		
		for(int j=0;j<500;++j)table[j] = 0;
		
		for(int x=1;x<=(i+1)/2;++x){
			for(int y=x+1;y<=(i+1-x)/2;++y){
				int z = i + 1 - x - y;
				if(z - x <= d && x!=y && y!=z && x!=z){
					if(x<=5 && y<=5 && z<=5)table[0] = 1;
					else if(x<=5 && y<=5)table[memo[z-1]] = 1;
					else if(x<=5){
						table[memo[y-1]] = 1;
						table[memo[z-1]] = 1;
					}else{
						table[memo[x-1]] = 1;
						table[memo[y-1]] = 1;
						table[memo[z-1]] = 1;
					}
				}
			}
		}
		for(int j=0;j<500;++j){
			if(table[j]!=1){
				memo[i] = j;
				break;
			}
		}
	}
	if(memo[l-1]){
		cout << "kado" << endl;
	}else{
		cout << "matsu" << endl;
	}
	
	return 0;
}