# DRUNKWATER TEMPLATE(add description and prototypes)
# Question Title and Description on leetcode.com
# Function Declaration and Function Prototypes on leetcode.com
#788. Rotated Digits
#X is a good number if after rotating each digit individually by 180 degrees, we get a valid number that is different from X.  Each digit must be rotated - we cannot choose to leave it alone.
#A number is valid if each digit remains a digit after rotation. 0, 1, and 8 rotate to themselves; 2 and 5 rotate to each other; 6 and 9 rotate to each other, and the rest of the numbers do not rotate to any other number and become invalid.
#Now given a positive number N, how many numbers X from 1 to N are good?
#Example:
#Input: 10
#Output: 4
#Explanation: 
#There are four good numbers in the range [1, 10] : 2, 5, 6, 9.
#Note that 1 and 10 are not good numbers, since they remain unchanged after rotating.
#Note:
#N  will be in range [1, 10000].
#class Solution:
#    def rotatedDigits(self, N):
#        """
#        :type N: int
#        :rtype: int
#        """



# Time Is Money