#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i,j;
	double y=0,s=0,e=0;
	cin>>n;
	int a[n][3];
	for(i=0;i<n;i++){
		for(j=0;j<3;j++){
			cin>>a[i][j];
		}
		
	}
	for(j=0;j<3;j++){
		for(i=0;i<n;i++){
			if(j==0){
				y+=a[i][j];
			}
			if(j==1){
				s+=a[i][j];
			}
			if(j==2){
				e+=a[i][j];
			}
			
			
			
				
		}
	}
	printf("%.1f",y/n);
	cout<<" ";
	printf("%.1f",s/n);
	cout<<" ";
	printf("%.1f",e/n);
}

/**************************************************************
	Problem: 1274
	User: wuzhijing
	Language: C++
	Result: Accepted
	Time:10 ms
	Memory:2076 kb
****************************************************************/