#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin>>n;
    int c[105][3];
    for(int i=1;i<=n;i++){
        for(int j=1;j<=3;j++){
            cin>>c[i][j];
        }
    }
    int s1=0,s2=0,s3=0;
    for(int i=1;i<=n;i++){
        s1+=c[i][1];
    }
    for(int i=1;i<=n;i++){
        s2+=c[i][2];
    }
    for(int i=1;i<=n;i++){
        s3+=c[i][3];
    }
    printf("%.1f",(s1/1.0/n))
    cout<<" ";
    printf("%.1f",(s2/1.0/n))
    cout<<" ";
    printf("%.1f",(s3/1.0/n))
}
/**************************************************************
	Problem: 1274
	User: luyanchen
	Language: C++
	Result: Compile Error
****************************************************************/