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

/**************************************************************
	Problem: 1274
	User: fuyijun
	Language: C++
	Result: Presentation Error
****************************************************************/