english: And it doesn't really matter -- I don't want you understand why it doesn't have the if statement, but I want you to understand that sometimes you can see a problem in a different way and rewrite it so that a special case goes away and becomes the normal case.
non_english: I nije zaista bitno - ne želim da shvatite zašto nema "ako" iskaz, ali želim da razumete da ponekad možete da posmatrate problem drugačije i da ga prepravite kako bi nestao specijalan slučaj i postao običan slučaj.