Change Clio engine

Moin, moin, Mein Clio I (Bj96 1,2l SN:3004760) has suffered a motor damage with 72,000, now I wanted to know which engine to install for it? I must also confess that I don’t really have a lot of idea of engines, let alone know a lot of cars at all. Anyway, I want to heal it again, have a clue with friends And now to the praised questions: Does that have to be exactly the same? Can the one of a clio II? can be the bigger one? Which code’s bz w. Identification data is important to order a replacement motor?