def _get_next_line(f):
    next_line = f.readline().decode('utf-8').rstrip()
    while next_line.startswith('#'):
        next_line = f.readline().rstrip()
    return next_line
def _get_next_line(f):
    next_line = f.readline().decode('utf-8').rstrip()
    while next_line.startswith('#'):
        next_line = f.readline().rstrip()
    return next_line