#include<iostream>
using namespace std;
int a[5050][3];
int main()
{
	int n,b=0,c=0,d=0,i,j;
	cin>>n;
	for(i=1;i<=n;i++){
		for(j=1;j<=3;j++){
			cin>>a[i][j];
		}
	}
	for(i=1;i<=n;i++){
		b=b+a[i][1];
		c=c+a[i][2];
		d=d+a[i][3];
	}
	float v1=1.0*b/n,v2=1.0*c/n,v3=d*1.0/n;
	printf("%.1f %.1f %.1f",v1,v2,v3);
    
    return 0;
}
/**************************************************************
	Problem: 1274
	User: xuanhua
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2136 kb
****************************************************************/