Softuniada 2017 - 03. Duplicated Letters

import re

test_string = input()

regEx = '([a-z])\\1'

steps = 0

while len(list(re.findall(regEx, test_string))) != 0:
    test_string = re.sub(regEx, '', test_string, 1)
    steps += 1

if len(test_string) > 0:
    print(test_string)
else:
    print("Empty String")
print("{0} operations".format(steps))