#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,a[100][3],s1=0,s2=0,s3=0;
    cin>>n;
    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];
    }
    float v1=s1*1.0/n;
    float v2=s2*1.0/n;
    float v3=s3*1.0/n;
    printf("%.1f",v1);
    cout<<" ";
    printf("%.1f",v2);
    cout<<" ";
    printf("%.1f",v3);
}
/**************************************************************
	Problem: 1274
	User: lijinkai
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/