> #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-1;k++)printf("property %d:This property will begin eroding in year %d.\n",k,s[k]);
>     printf("END OF OUTPUT.\n");
> }