Dice Roll Probability Question

New to MATLAB. Need help with this.

Given a dice with six numbers ({1, 2, 3, 4, 5, 6}), each number comes with the same probability when you roll it. Suppose you have such THREE dices and you simultaneously roll all of them to get the sum of those three output numbers. When the sum is 3 or 18, you win. Otherwise, you lose. You are so addicted to this game and will not stop until win it once (get 3 or 18 in one play). Let the random variable Y denote the number of plays when you stop playing. You have to repeat the game several times (1000) and plot the histogram of how many times did you tossed the three dice before you reached 3 or 18.

[Walter Roberson]

See http://uk.mathworks.com/matlabcentral/answers/243882-3-dices-sum-that-gets-3-or-18 for an identical question.