#include<iostream> using namespace std; int main(){ int h1, h2, k1, k2, a, b, c, d, H, K; cin >> h1 >> h2 >> k1 >> k2 >> a >> b >> c >> d; H = h1*a + (h1/10)*c + h2*b + (h2/20)*d; K = k1*a + (k1/10)*c + k2*b + (k2/20)*d; if ( H > K ) cout << "hiroshi" << endl; else if ( H < K ) cout << "kenjiro" << endl; else cout << "even" << endl; return 0; }