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#include <iostream>

#include <cmath>

using namespace std;

#define PI 3.1415926535

int main(){


int n=0;

double x=0,y=0;

cin>>n;

for(int i=0;i<n;i++){


cin>>x>>y;

cout<<“Property “<<i+1<<“: This property will begin eroding in year ”

<< (int)ceil(PI*(x*x+y*y)/100.0) <<“.”<<endl;

}

cout << “END OF OUTPUT.” << endl;

return 0;

}