import os
import sys
import re

print('happy')

file_list = []
for root, dirs, files in os.walk(sys.argv[1]):
    file_list = files
    print(files)
    for item in file_list:
        match = re.match(item,re.compile('Group(\d*\w)DistinctGIs.txt')
        group_number = match.group(1))
        print(group_number)