#include<stdio.h>
#include<math.h>
void main(){
	float x,y;
	int year,u,t,k=1,s[1000];
	scanf("%d",&u);
	for(t=1;t<=u;t++){
        scanf("%f%f",&x,&y);
		year=(int)ceil((x*x+y*y)*3.1416/100);
	    s[t]=year;
	}
	for(;k<=t;k++)printf("property %d:This property will begin eroding in year %d\n",k,s[k]);
    printf("END OF OUTPUT.\n");
}