500
dear Mr. Bill Waterson:
you accidently left one of Your calvin and hobbes books at the restaurant, And you need to come get it Now, before it closes for good.
sincerely,
Billy Bob Joe
Alright, well... the D on Dear, the Y on You, the C on Calvin, the H on Hobbes should all be capitalized. And the Y on your, the A on and, and the N on now should not be capitalized. Also, Sincerely should be capitalized, too.