#include<bits/stdc++.h>
using namespace std;
int main(){
  int i,j,n;
  float s=0,x=0,m=0;
  cin>>n;
  int a[100][3];
  for(i=0;i<n;i++){
  	for(j=0;j<3;j++) cin>>a[i][j];
  	}
  for(j=0;j<n;j++) s=s+a[j][0];
  for(j=0;j<n;j++) x=x+a[j][1];
  for(j=0;j<n;j++) m=m+a[j][2];
  m=m/n*1.0;
  x=x/n*1.0; 
  s=s/n*1.0;
  printf("%.1f ",s);
  printf("%.1f ",x);
  printf("%.1f",m);
return 0;
}

/**************************************************************
	Problem: 1274
	User: wtq001
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/