#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin>>n;
    int a[105][3];
    int s1=0,s2=0,s3=0;
    for(int i = 0;i<n;i++)
    {
        for(int j = 0;j<3;j++)
        {
            cin>>a[i][j];
        }
    }
    for(int i = 0;i<n;i++)
    {
        s1 = s1 + a[i][0];
        s2 = s2 + a[i][1];
        s3 = s3 + a[i][2];
    }
    printf("%.1f",(s1*1.0/n));
    cout<<" ";
    printf("%.1f",(s2*1.0/n));
    cout<<" ";
    printf("%.1f",(s3*1.0/n));
}
/**************************************************************
	Problem: 1274
	User: wuyichen
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2076 kb
****************************************************************/