The expression N!, read as "N factorial," denotes the product of the first N positive integers, where N is nonnegative. So, for example,N N!0 11 12 23 64 245 12010 3628800For this problem, you are to write a program that can compute the last non-zero digit of the factorial for N. For example, if your program is asked to compute the last nonzero digit of 5!, your program should produce "2" because 5! = 120, and 2 is the last nonzero digit of 120.
，人，都有不能称心如意的时候，都有愿望落空的窘迫，
