#include<bits/stdc++.h>
using namespace std;               
int n,a[999][999],s1=0,s2=0,s3=0;
int main(){
    cin>>n;
for(int i=1;i<=n;i++){
    for(int j=1;j<=3;j++){
        cin>>a[i][j];
    }
}
    for(int i=1;i<=n;i++){
        s1=a[i][1]+s1;
        s2=a[i][2]+s2;
        s3=a[i][3]+s3;
}
printf("%.1f %.1f %.1f",s1*1.0/n,s2*1.0/n,s3*1.0/n);
}
/**************************************************************
	Problem: 1274
	User: lidongbo
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:5976 kb
****************************************************************/