#include <bits/stdc++.h>   int main() {     int n;     scanf( %d , &n);     int people_in_queue[n];     for (int i = 0; i < n; i++) {       scanf( %d  , &people_in_queue[i]);     }     int num_of_product[n][100], sum[n];     for (int i = 0; i < n; i++) {       sum[i] = 0;       for (int j = 0; j < people_in_queue[i]; j++) {         scanf( %d , &num_of_product[i][j]);         sum[i] = sum[i] + num_of_product[i][j];       }     }     int time[n];     for (int i = 0; i < n; i++) {       time[i] = sum[i] * 5 + people_in_queue[i] * 15;     }     int min = time[0];     for (int i = 0; i < n; i++) {       if (min > time[i]) {         min = time[i];       }     }     printf( %d , min);     return 0;   }   