import re
import sys

re_class = re.compile('([:, ]+((((virtual|public|private)\s)+(?P<class>[A-Za-z0-9]+))))')
re_nested_class = re.compile('class\s+(?P<nested_class>[A-Za-z0-9_]+)')

for line in sys.stdin:
    m = re_nested_class.search(line)
    if m:
        cls = m.group('nested_class')
        classes = []
        for m in re_class.finditer(line):
            classes.append(m.group('class'))
        if classes:
            print('Class {0} inherits {1}'.format(cls, ', '.join(classes)))
        else:
            print('Class {0} doesn\'t inherit any class'.format(cls))