#include <bits/stdc++.h> using namespace std; int main() { int n,ss=0,tt=0; cin>>n; int s[n],t[n]; for(int i=0;i<n;++i){ cin>>s[i]>>t[i]; ss+=s[i]; tt+=t[i]; } cout<<fixed<<setprecision(2)<<1.0*ss/n<<endl; cout<<fixed<<setprecision(2)<<1.0*tt/n; return 0; }