def __init__(self, chunks, v_max, key):
        """Initialization method

        :param chunks: number of chunks to challenge
        :param v_max: largest coefficient value
        :param key: the key for this challenge
        """
        self.chunks = chunks
        self.v_max = v_max
        self.key = key
def __init__ ( self , chunks , v_max , key ) : self . chunks = chunks self . v_max = v_max self . key = key
Initialization method

        :param chunks: number of chunks to challenge
        :param v_max: largest coefficient value
        :param key: the key for this challenge