item_list = [1,2,3,1,2,3,9,8,9,5,4,5,6,4,5,6,]
document="New to Python or choosing between Python 2 and Python 3 ? Read Python 2 or Python 3"
print(len(item_list))
print(set(item_list))
print(len(set(item_list)))
print(list(item_list))
print(list(document))