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#!/usr/bin/env python
# Challenge 091
#
# TASK #1: Count Number
#
# You are given a positive number $N. Write a script to count number and
# display as you read it.
# Solution with regular expressions:
# Just match the first digit and a sequence of equal matches, capture the
# results and show them.
import re
import sys
def count_number(n):
n = str(n)
out = ''
while n != '':
m = re.match(r'^((\d)\2*)', n)
out += str(m.end())+m.group(2)
n = n[m.end():]
return out
print(count_number(int(sys.argv[1])))
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