#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin>>n;
    int a[105][3];
    for(int i=0;i<n;i++)
    {
    	for(int j=0;j<3;j++)
    	{
    		cin>>a[i][j];
		}
	}
	float l=0.0;
	float c=0.0;
	float d=0.0;
	for(int i=0;i<n;i++)
	{
		l+=a[i][0];
		c+=a[i][1];
		d+=a[i][2];
	}
	printf("%.1f ",l/n);
	printf("%.1f ",c/n);
	printf("%.1f ",d/n);
	return 0;
}
/**************************************************************
	Problem: 1274
	User: chenkexin
	Language: C++
	Result: Accepted
	Time:25 ms
	Memory:2076 kb
****************************************************************/