#include <iostream>
using namespace std;

int main() {
    int scores [9] = { 100, 80, 60, 75, 95, 65, 85, 40, 70 };
    int total = 0;
    for (int i = 0; sizeof(scores); i++) {
        total += scores[i];
    }
    double average = (double) total / sizeof(scores);
    cout << average << endl;
    cin.get();
    return 0;
}