1 #include<iostream>
 2 #define pi 3.14159265
 3 using namespace std;
 4 int main(){
 5     int N;
 6     double x,y;
 7     int year;
 8     cin>>N;
 9     for(int i=0;i<N;i++){
10         cin>>x>>y;
11         year=pi*(x*x+y*y)/100+1;
12         cout<<"Property "<<i+1<<": This property will begin eroding in year "<<year<<"."<<endl;
13     }
14     cout<<"END OF OUTPUT.";
15 }