import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner s = new Scanner(System.in);
        int maxr = Integer.MIN_VALUE;
        int r = 0;
        int t = 0;
        for (int i = 0; i < 5; i++) {
            int tmp = s.nextInt();
            r = 10 - tmp % 10;
            t += tmp + r;
            if (maxr < r) {
                maxr = r;
            }
        }
        s.close();

        System.out.println(t - maxr);
    }
}