Puzzle 97 - Another cryptarithmetic

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 Cryptarithmetic is mathematical game is a type of mathematical game consisting of a mathematical equation among unknown numbers, whose digits are represented by letters of the alphabet.

Most commonly used example is 
  SEND
+MORE
-----------
MONEY
(The solution to this puzzle is O = 0, M = 1, Y = 2, E = 5, N = 6, D = 7, R = 8, and S = 9.)
 

Now let us look at much simpler example.
 
    AB
   AB
+  AB
-------
  19B 

What are the values of A and B, if B is not zero?

Hint: B can take only one value other than zero. 
 
You can find the solution here. 

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