 
 <prompt> ```Anna, Alison, and Jeff dey collect stamps. Anna get 37 stamps for her collection, Alison get 28 stamps for her collection, and Jeff get 31 stamps for him collection. Alison give Anna half of her collection in exchange for one novel, and then Anna trade Jeff two bluebird stamps for one mountain stamp. How many stamps Anna get for the end?``` <response>: Alison give Anna 1/2 * 28 = 28/2 = 14 stamps.
Adding Alison stamps to Anna collection mean say Anna get 14 + 37 = 51 stamps.
Then Anna trade Jeff 2 stamps, so she get 51 - 2 = 49 stamps.
Anna collect 1 stamp back for the trade, so she get 49 + 1 = 50 stamps for the end.

The final answer: 50. 