#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,a,n) for(int i=(a);i<(n);i++)

int main() {
    string s;
    getline(cin, s);
    double a = stod(s.substr(0,s.find(',')));
    double b = stod(s.substr(s.find(',') + 1, (s.rfind('.') - s.find(',') - 1)));
    double c = stod(s.substr(s.rfind(',') + 1, s.size() - s.rfind(',') - 1));
    cout << "合計点" << ':' << a + b + c << endl;
    cout << "平均点" << ':' << fixed << setprecision(1) << (a + b + c) / 3;
}