> #include<iostream>
> #include<cmath> 
> using namespace std;
> #define pi 3.14
> int main()
> {
>  int counter;
>  float x,y;
>  double square;
>  double years;     
>  cin>>counter;
>  for(int i=0;i<counter;i++)
>  {
>    cin>>x>>y;
>    square=pi*(x*x+y*y);
>    years=square/100;   
>    cout<<"Property"<<i+1<<":"<<"This property will begin eroding in year" <<(int)++years<<"."<<endl;   
> 	                                                                   
>  } 
>    cout<<"END OF OUTPUT."<<endl;
>    return 0;
> }