#include <iostream>
#include <cmath>

using namespace std;

int main() {
    int result = 0, rest_min = 10, food_time;
    for (int i=0; i<5; i++) {
        cin >> food_time; 
        result += (int)ceil((float)food_time/10)*10
        rest_min = min(rest_min, food_time%10)
    }
    result += rest_min

    cout << result << endl;
}