#include <iostream>
#include <iomanip>
using namespace std;
 
int main() {
    int n;
    cin >> n;
     
    double sum_chinese = 0, sum_math = 0, sum_english = 0;
    for (int i = 0; i < n; i++) {
        int chinese, math, english;
        cin >> chinese >> math >> english;
        sum_chinese += chinese;
        sum_math += math;
        sum_english += english;
    }
    cout << fixed << setprecision(1);
    cout << sum_chinese / n << " " << sum_math / n << " " << sum_english / n << endl;
     
    return 0;
}
/**************************************************************
	Problem: 1274
	User: wengsihan
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2072 kb
****************************************************************/