baekjoon 10039

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;

class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringBuilder sb = new StringBuilder();
        int sum = 0;
        for (int i = 0; i < 5; i++) {
            int x = Integer.parseInt(br.readLine());
            if (x< 40)
                x = 40;
            sum += x;
        }
        sb.append(sum/5);
        System.out.println(sb);
    }
}