#! /bin/python

 def ip2decimalism(ip):

     dec_value = 0

     v_list = ip.split('.')

     v_list.reverse()

     t = 1

     for v in v_list:

         dec_value += int(v) * t

         t = t * (2 ** 8)

     return dec_value

 def decimalism2ip(dec_value):

     ip = ''

     t = 2 ** 8

     for _ in range(4):

         v = dec_value % t

         ip = '.' + str(v) + ip

         dec_value = dec_value // t

     ip = ip[1:]

     return ip

 if __name__ == '__main__':

     dec_value = ip2decimalism('0.0.0.10')

     print(dec_value)

     ip = decimalism2ip(10)

     print(ip)