a = "hello"
b = "hello"
print (a is b)
a = 10
b = 10
print (a is b)
a = [1,2,3]
b = [1,2,3]
print (a is b)
a = b
print (a is b)
a = None
b = None
print (a is b)
a = ""
b = ""
print (a is b)
a = []
b = []
print (a is b)
print ([] is [])
print ( () is () )
a = ()
b = ()
print (a is b)
print (10.20 is 10.20)