#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
template<class T> inline bool chmax(T&a,T b){if(a<b){a=b;return 1;}return 0;}
template<class T> inline bool chmin(T&a,T b){if(a>b){a=b;return 1;}return 0;}
using ll = long long;

int j,m,b;

int main () {
  cin.tie(0); ios::sync_with_stdio(false); 

  cin >> j >> m >> b;
  cout << "合計点:" << j+m+b << endl;
  cout << fixed << setprecision(1) << "平均点:" << (j+m+b)/3.0 << endl;
}