After all the cold dishes of a banquet are served, there are seven hot dishes  Among them, 3 Sichuan cuisine: K, L, M: 3 Cantonese cuisine: Q, N, P: one Shandong cuisine: X  Only one hot dish is served at a time, and the order of serving must meet the following conditions :(1) neither sichuan cuisine nor cantonese cuisine can be served consecutively  (2) P cannot go up before Q unless the second one goes up Q  (3) P must go up before X
(4) M must go up before K, and K must go up before N
The first one goes up Q