If P means plus, M mean minus, N means multiply and S means divide, then find the value of? 18M6N24S8P17?

71 53 35 17

17

P means (+), M mean(-), N means (x) and S means (/) 18M6N24S8P17 = 18 - 6 x \(\frac{24}{8}\) + 17 = 18 - 6 x 3 + 17 = 18 - 18 + 17 = 17