hdu1065

#include <stdio.h>

int main()
{
    int t;
    double x, y;
    scanf("%d", &t);
    for(int i =; i <= t; ++i){
        scanf("%lf%lf", &x, &y);
        printf("Property %d: This property will begin eroding in year %d.\n",
            i, int((x*x + y*y) * 3.1415926 / +));
    }
    printf("END OF OUTPUT.\n");
    return;
}