0316:

#include<stdio.h>

int main(){
  int h1, h2, k1, k2, a, b, c, d, H, K;
  scanf("%d %d %d %d %d %d %d %", &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 ) printf("hiroshi\n");
  else if ( H < K ) printf("kenjiro\n");
  else printf("even\n");

  return 0;
}