import re
import sys

PATH = sys.argv[1]

pat = re.compile(r"#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})")

with open(PATH, 'r') as content_file:
    content = content_file.read()
    matches = re.findall(pat, content)


matches = [x.upper() for x in matches]  # ignoring case
matches = list(set(matches))  # removing duplicates
if not matches:
    print("No hex colors found")
else:
    for m in matches:
        print("#" + m)