poj1005

#include<stdio.h>
#include<math.h>
float x,y;
int n;
double cal;
int year;
//float M_PI=3.1415926;
int main()
{
    scanf("%d",&n);
    
    for(int i=1;i<=n;i++)
    {
       scanf("%f%f",&x,&y);
       cal=(x*x+y*y)*M_PI/2/50;
       year=(int)ceil(cal);
       printf("Property %d: This property will begin eroding in year %d.\n",i,year);
    }
    
    printf("END OF OUTPUT.\n");
    
    return 0;
}