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  • I'm guessing that he's referring the 2 that is the third element of his array, but it is indeed unclear. Commented Jan 28, 2014 at 22:31
  • @ValekHalfHeart: Well, counting from 1, a + 3 would point to the fourth element of the array, which is 3, not 2. Commented Jan 28, 2014 at 22:32