#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,a[100][3],s1=0,s2=0,s3=0;
	cin>>n;
	for(int i=0;i<n;i++){
		for(int j=0;j<3;j++){
			cin>>a[i][j];
		}
	}
	for(int i=0;i<n;i++){
		s1=s1+a[i][0];
		s2=s2+a[i][1];
		s3=s3+a[i][2];
	}
	float v1=s1*1.0/n;
	float v2=s2*1.0/n;
	float v3=s3*1.0/n;
	printf("%.1f",v1);
	cout<<" ";
	printf("%.1f",v2);
	cout<<" ";
	printf("%.1f",v3);
}
/**************************************************************
	Problem: 1274
	User: zengyixuan
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2076 kb
****************************************************************/