Caiet de vacanță. Ex.6!

a)3425,3452,4235,5423,5432,2345,2354,2435,2453,3245,4325,4523,4532,5234,5324,
b)2345,2354,2435,2453,3245,3425,3452,4235,4325,4523,4532,5234,5324,5423,5432