#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,a[200][10],s1=0,s2=0,s3=0;
	cin>>n;
    for(int i=1;i<=n;i++){
    	for(int j=1;j<=3;j++){
    	 cin>>a[i][j];
		}
	}
	for(int i=1;i<=n;i++){
		s1=s1+a[i][1];
		s2=s2+a[i][2];
		s3=s3+a[i][3];
	}
	printf("%.1f %.1f %.1f",s1*1.0/n,s2*1.0/n,s3*1.0/n);
	
	
	
	
	
	
	
}
/**************************************************************
	Problem: 1274
	User: lidongcheng
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/