primary u.s. interstate highways are numbered 1-99. odd numbers (like the 5 or 95) go north/south, and evens (like the 10 or 90) go east/west. auxiliary highways are numbered 100-999, and service the primary highway indicated by the rightmost two digits. thus, the 405 services the 5, and the 290 services the 90. given a highway number, indicate whether it is a primary or auxiliary highway. if auxiliary, indicate what primary highway it serves. also indicate if the (primary) highway runs north/south or east/west. ex: if the input is 90, the output is: the 90 is primary, going east/west. ex: if the input is 290, the output is: the 290 is auxiliary, serving the 90, going east/west. ex: if the input is not 1-999, such as 0, the output is:
