#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,m,i,j;
	cin>>n;
	float b=0,g=0,q=0;
	int a[100][3];
	for(i=0;i<n;i++){
		for(j=0;j<3;j++){
			cin>>a[i][j];
			if(j==0)
				b+=a[i][j]; 
			if(j==1)
				g+=a[i][j]; 
			if(j==2)
				q+=a[i][j]; 		
		} 
	}
	printf("%.1f %.1f %.1f",b/n,g/n,q/n); 
	return 0;
}
/**************************************************************
	Problem: 1274
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:6 ms
	Memory:2076 kb
****************************************************************/