#include<bits/stdc++.h>
using namespace std;
int main(){
	int i,j,n,a[105][3];
	float h=0,y=0,s=0,y2=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){
				y2=y2+a[i][j];
			}
			
		}
	}
	y=y/n;
	s=s/n;
	y2=y2/n;
	printf("%.1f %.1f %.1f",y,s,y2);
} 
/**************************************************************
	Problem: 1274
	User: cyp
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/