#include<bits/stdc++.h>
using namespace std;
int main() {
	int n,i,j,a[10000][3];
	float p1,p2,p3,h1=0,h2=0,h3=0;
	cin>>n;
	for(i=0;i<n;i++){
		for(j=0;j<3;j++){
			cin>>a[i][j];
			if(j==0){
				h1+=a[i][0];
			}
			if(j==1){
				h2+=a[i][1];
			}
			if(j==2){
				h3+=a[i][2];
			}
		} 
	} 
	p1=h1/n;
	p2=h2/n;
	p3=h3/n;
	printf("%.1f %.1f %.1f",p1,p2,p3);
}

/**************************************************************
	Problem: 1274
	User: chenjunlin
	Language: C++
	Result: Accepted
	Time:6 ms
	Memory:2076 kb
****************************************************************/