#include<bits/stdc++.h>
using namespace std;
int main(){
int n,w=0,s=0,y=0,a[100][3]={0},i,j;
float p1=0.0,p2=0.0,p3=0.0;
cin>>n;
for(i=0;i<n;i++){
	for(j=0;j<3;j++){
		cin>>a[i][j];
		if(j==0){
			w=w+a[i][j];	
		}else if(j==1){
			s=s+a[i][j];
		}else{
			y=y+a[i][j];
		}
		
	}
}
p1=w*1.0/n;
p2=s*1.0/n;
p3=y*1.0/n;
printf("%.1f",p1);
printf(" %.1f",p2);
printf(" %.1f",p3);
}




/**************************************************************
	Problem: 1274
	User: linweilun
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/