#include<bits/stdc++.h>
using namespace std;
int main() {
    int a[100][3]={0},i,j,n;
    float x=0,y=0,z=0;
    cin>>n;
    for(i=0;i<n;i++){
        for(j=0;j<3;j++){
            cin>>a[i][j];
            if(j==0) x=x+a[i][j];
            else if(j==1) y=y+a[i][j];
            else z=z+a[i][j];
        }
    } 
    printf("%.1f",x/n);
    printf(" %.1f",y/n);
    printf(" %.1f",z/n);
}
/**************************************************************
	Problem: 1274
	User: linmiaoling
	Language: C++
	Result: Accepted
	Time:9 ms
	Memory:2076 kb
****************************************************************/