#!/usr/bin/python3

x = (1,2,3)
print(type(x))  # tuple
x = ()
print(type(x))  # empty tuple
x = (n for n in (1,2,3))
print(type(x))  # generator
x = [1,2,3]
print(type(x))  # list
x = {1,2,3}
print(type(x))  # set
x = {}
print(type(x))  # dictionary