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


/**************************************************************
	Problem: 1274
	User: 15159808820
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2072 kb
****************************************************************/