#include <iostream>
 using namespace std;
 const double pi = 3.1415926535;

 int main()
 {
     ;;
     double x,y;
     cin >> t;
     while(t--)
     {
         ++time;
         cin >> x >> y;
         double area = pi*(x*x + y*y);
         ;
         cout<<"Property "<<time<<": This property will begin eroding in year "<<res<<'.'<<endl;
     }
     cout<<"END OF OUTPUT."<<endl;
     ;
 }