#A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99.
#Find the largest palindrome made from the product of two n-digit numbers where n is a nnumber entered by user.
def sys
calc(n):
    #TODO

if __name__ == '__main__':
    #Accept user input and call calc()
    #TODO
    sys.exit(0)



