#include<bits/stdc++.h>
using namespace std;
int main(){
	int n=3,m,i,j;
	float s1=0,s2=0,s3=0;
	cin>>m;
	int a[m][n];
	for(i=0;i<m;i++){
		for(j=0;j<n;j++){
			cin>>a[i][j];
		}
	}
	for(i=0;i<m;i++){
		s1+=a[i][0];
		s2+=a[i][1];
		s3+=a[i][2];
	}
	s1=s1*1.0/m;
	s2=s2*1.0/m;
	s3=s3*1.0/m;
	printf("%.1f %.1f %.1f",s1,s2,s3);
	return 0;
}

/**************************************************************
	Problem: 1274
	User: tangkaixuan
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/