list1 = [1,2,3]  # create list1
list2 = [11,22,33]  # create list2

print(id(list1))   # address of list1

print(id(list2))   # address of list2

list3 = list1 + list2   # concatenate list1 and list2 and create list3

print(list3)

print(id(list3))  # address of the new list list3

print(id(list1))   # address of list1 is still same

print(id(list2))   # address of list2 is still same