#include <iostream>
using namespace std;

int main() {
    int a, b;
    while (cin >> a >> b) { // 注意 while 处理多个 case
        if(a==b)
        {
            cout<<"draw"<<endl;
            break;
        }
        switch ((a-b)>0?1:0) {
            case 1:
                cout<<"kou"<<endl;
                break;
            case 0:
                cout<<"yukari"<<endl;
                break;
        }
    }
}
// 64 位输出请用 printf("%lld")