#include <stdio.h>
#include <math.h>
int  main()
{
  	int n,i,year;
  	float x,y;
 	scanf("%d %f %f", &n,&x,&y);
 	for (i=1;i<=n;i++){
 		year=(int)((x*x+y*y)*3.14/2/50);	
 		printf("Property %d :This property This will begin eroding in year %d.\n",i,year); 
 	} 
 	printf("Out of put.\n")
}