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#!/usr/bin/python3
# Challenge 020
#
# Task #1
# Write a script to accept a string from command line and split it on change
# of character. For example, if the string is "ABBCDEEF", then it should split
# like "A", "BB", "C", "D", "EE", "F".
import sys
import re
str = sys.argv[1]
segs = []
while True:
matches = re.match(r"((.)\2*)", str)
if not matches:
break
segs.append(matches.group(1))
str = str[matches.end(0):]
print(", ".join(['"'+x+'"' for x in segs]))
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