# include <iostream>
using namespace std;

const double PI = 3.14;
int main()
{
	int n; //n  indicating how many data sets will be included
	int index = 1;
	float x_pos, y_pos;
	int years[10];
	cin>>n;
	int i;
	for( i = 0; i<n;i++)
	{
		cin>>x_pos>>y_pos;
		years[i] = (int)(x_pos*x_pos + y_pos*y_pos)*PI/100 + 1	;
    }
	for(i = 0;i<n;i++)
     	cout<<"Property "<<index++<<':'<<" This property will be eroding in year "<< years[i]<<'.'<<endl;
	cout<<"END OF OUTPUT."<<endl;
	return 0;
}