#include<stdio.h>
int main()
{ unsigned int x=0;
float y;
// printf(“Enter Withdrawal Amount & Account Balance currently “);
scanf(”%d%f”,&x,&y);
if((x>2000) || (y>2000))
{ return 0;
}
if(x%5==0)
{ if(y>=(x+0.50))
{
y=y-x-0.5;
printf("%0.2f\n",y);
}
if(y<(x+0.50))
{ printf("%0.2f\n",y);
}
}
else
{ printf("%0.2f\n",y);
}
return 0;
}