#include <iostream>
#include <iomanip>
using namespace std;

int main() {
    int n;
    cin >> n;
    
    double chinese_sum = 0, math_sum = 0, english_sum = 0;
    
    for (int i = 0; i < n; ++i) {
        double chinese, math, english;
        cin >> chinese >> math >> english;
        chinese_sum += chinese;
        math_sum += math;
        english_sum += english;
    }
    
    cout << fixed << setprecision(1) 
         << chinese_sum / n << " " 
         << math_sum / n << " " 
         << english_sum / n << endl;
    
    return 0;
}

/**************************************************************
	Problem: 1274
	User: fuyijun
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2072 kb
****************************************************************/