import java.util.*;

class Main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);

        int ans = 0;
        int last = 10;
        for(int i = 0; i < 5; i++){
            int input = sc.nextInt();
            ans += (input - 1) / 10 + 1;
            if(input % 10 != 0){
                if(last == 0)last = input % 10;
                else last = Math.min(last, input % 10);
            }
        }
        ans *= 10;
        ans -= 10 - last;
        System.out.println(ans);
    }
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz