Wu style taijiquan traditional 83 style with 84 style is not the same

Wu style taijiquan traditional 83 style with 84 style is not exactly the same, Wu's taijiquan basic movements 83 style and 84 style are almost the same, but the sequence of each movement is not quite the same, generally 83 style will be practiced, the 84 style will be almost the same, but the sequence of the movement is not exactly the same.