#include<bits/stdc++.h>
using namespace std;
int n;
int a[i][j];
float k,l,p;
int main(){
	cin>>n;
	
	for(int i=0;i<n;i++){
		for(int j=0;j<3;j++){
			cin>>a[i][j];				
		}
	}
	for(int i<n;i++){
		k=k+a[i][0];
   		l=l+a[i][1];
    	p=p+a[i][2];

	}
	float s1=k*1.0/n;
	float s2=l*1.0/n;
	float s3=p*1.0/n;
	printf("%.1f"s1,s2,s3);
	cout<<s1<<" "<<s2<<" "<<s3<<" ";
	
	return 0;
}


/**************************************************************
	Problem: 1274
	User: wuzihang
	Language: C++
	Result: Compile Error
****************************************************************/