def different(lists):
    sum_ = 0
    collection_ = []
    for list_ in lists:
        for element in list_:
            collection_.append(element)
    set_collection = set(collection_)
    sum_ += len(set_collection)
    return sum_


print(different([[1, 0, 1], [0, 1, 0]]))
print(different([[32, 12, 52, 63], [32, 64, 67, 52],
                 [64, 64, 17, 34], [34, 17, 76, 98]]))