#include <iostream>
#include <iomanip>
using namespace std;
int main(int argc, char* argv[]) {
    int Score[4][5];
    for (int i = 0; i < 4; i++)
        for (int j = 0; j < 5; j++)
            cin >> Score[i][j];
    for (int i = 0; i < 4; i++) {
        double t = 0;
        for (int j = 0; j < 5; j++)
            t += Score[i][j];
        cout << setprecision(1) << fixed << t/5 << ' ';
    }
}