i forget my last apple id

hello

i forget my last apple id

i enter that on my ipod touch about on year ago and dont use my ipod for last 4-5 month

then i want use that but i forget my pascode so i restore my ipod & then that want my last icloud id and password

now my ipod is locked about 2 month

please unlock it

my serial number of ipod touch is :

CC******4K4

<Personal Information Edited by Host>