The owner of a local jewellery store hired 3 watchmen to guard his diamonds, but a thief still got in and stole some diamonds. On the wayout, the thief met each watchman, one at a time. To each he gave $$\frac{1}{2}$$ of the diamonds he had then, and 2 more besides. He escaped with one diamond. How manydid hesteal originally?

A

40

B

36

C

25

D

None of these