*args

def len_list(*args):
    return len(args)


list1 = [1, 2, 3]
list2 = [4, 5]
list3 = [6, 7, 8, 9]

matrix = [[1, 2, 3], [4, 5], [6, 7, 8, 9]]
matrix1 = [[1, 2, 3], [4, 5], [6, 7, 8, 9]]

print(len_list(list1))
print(len_list(*list1))
print(len_list(*list1, *list2, *list3))
print(len_list(*matrix))
print(len_list(*matrix, *matrix1))