#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,i,j,a[100][3]={0};
    float y=0,s=0,g=0;
    cin>>n;
    for(i=0;i<n;i++){
        for(j=0;j<3;j++){
            cin>>a[i][j];
            if(j==0){
                y=y+a[i][j];
            }
            if(j==1){
                s=s+a[i][j];
            }
            if(j==2){
                g=g+a[i][j];
            }
        }
         
    }
    printf("%.1f",y/n);
    printf(" %.1f",s/n);
    printf(" %.1f",g/n);
    return 0;
}
/**************************************************************
	Problem: 1274
	User: panjinyan
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2076 kb
****************************************************************/