#include<bits/stdc++.h>
using namespace std;
int main(){
   int n,s1=0,s2=0,s3=0;
   cin>>n;
   int a[100][3];
   for(int i=0;i<n;i++){
       cin>>a[i][0]>>a[i][1]>>a[i][2];
   }
   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 %.1f %.1f",v1,v2,v3);
        return 0;
}
/**************************************************************
	Problem: 1274
	User: wangyousi
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/