Помогите, плиз... Do you know any endings of russian folk tales? What do they teach?

In the end of most of Russian folk tales good and kind people always take the upper hand over bad and evil people. Also those who are in love usually get married and live a  long and happy life together.   From these folk tales we learn to be strong, smart and help those who are in need  or trouble, and not to give up hope and fight till the end.