#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: chenxuanyi
	Language: C++
	Result: Presentation Error
****************************************************************/