#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i,j,a[100][3]={0};
	float y=0,s=0,g=0;
	cin>>n;
	for(i=0;i<n;i++){
		for(j=0;j<3;j++){
			cin>>a[i][j];
			if(j==0){
				y=y+a[i][j];
			}
			if(j==1){
				s=s+a[i][j];
			}
			if(j==2){
				g=g+a[i][j];
			}
		}
		
	}
   	printf("%.1f",y/n);
   	printf(" %.1f",s/n);
   	printf(" %.1f",g/n);
}

/**************************************************************
	Problem: 1274
	User: jiangyuanfeng
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2076 kb
****************************************************************/