#include<bits/stdc++.h> using namespace std; int main(){ float n,M,C,E,sum=0,sm=0,cm=0,em=0; cin>>n; for(int i=1;i<=n;i++){ cin>>M>>C>>E; sum=M+C+E; cout<<sum<<endl; sm=sm+M; cm=cm+C; em=em+E; } cout<<fixed<<setprecision(1)<<sm/n<<" "<<cm/n<<" "<<em/n; return 0; }

#include<iostream>
#include<cstdio>
using namespace std;
int main(){
  int n,a,b,c,s1=0,s2=0,s3=0;
  cin>>n;
  for(int i=1;i<=n;i++){
    cin>>a>>b>>c;
    cout<<a+b+c<<"\n";
    s1+=a;
    s2+=b;
    s3+=c; 
  }
  printf("%0.1f %0.1f %0.1f\n",(float)s1/n,(float)s2/n,(float)s3/n);
  return 0;
}