My version of decision of pythonchallenge №10

pythonchallenge_10

#http://www.pythonchallenge.com/
#challenge num_10

import re
import time

start = time.time()

def GetNextNum(num):
    num1 = re.sub('[2]+', ' 0 ', num)
    num1 = re.sub('[3]+', ' 0 ', num1)

    num2 = re.sub('[1]+', ' 0 ', num)
    num2 = re.sub('[3]+', ' 0 ', num2)

    num3 = re.sub('[1]+', ' 0 ', num)
    num3 = re.sub('[2]+', ' 0 ', num3)

    # print(num1)
    # print(num2)
    # print(num3)

    num1 = num1.split()
    num2 = num2.split()
    num3 = num3.split()

    # print(num1)
    # print(num2)
    # print(num3)

    outStr = ''
    for iter in range(len(num1)):
        if num1[iter] != '0':
            curEl = num1[iter]
        elif num2[iter] != '0':
            curEl = num2[iter]
        else:  # num3
            curEl = num3[iter]
        outStr += str(len(curEl)) + curEl[0]
    #print(outStr)
    return outStr

Mylist = []
curVal = '1'
i = 0
while i <= 30:
    i += 1
    Mylist.append(curVal)
    curVal = GetNextNum(curVal)

print(len(Mylist[30]))

elapsed = (time.time() - start)
print("result returned after {0} seconds." .format(elapsed))

#5808
#result returned after 0.07800412178039551 seconds.