999x22+333x33= 9 x 111 x 2 x 11 + 3 x 111 x 3 x 11= 2 x 9 x 111 x 11 + 9 x 111 x 11= 3 x 9 x 111 x 11= 9 x 111 x 3 x 11= 999 * 33= (1000 - 1) * 33= 33000 - 33= 32967
