print(id(1337))
v1 = "Hallo Welt"
print(id(v1))

print()
v1 = [1, 2, 3]
v2 = v1
v3 = [1, 2, 3]
print(type(v1))
print(type(v1) == type(v3))
print(v1 == v3)
print(id(v1) == id(v3))
print(id(v1) == id(v2))

print()
print(v1 is v3)
print(v1 is v2)