The problem is to cut the largest possible number of circles with diameter \textbf{y} out of a stripe of length \textbf{x} and width \textbf{y}. \InputFile The only line of input consists of two positive real numbers \textbf{x} and \textbf{y} with \textbf{9}-digit precision separated by spaces. The integers may be written without decimal point. \OutputFile Output a single integer - the maximum number of circles one can cut out of the stripe.