After all the cold dishes of a banquet table are served, there are a total of 7 hot dishes. Among them, 3 Sichuan dishes: K, L, M: 3 Cantonese dishes: 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) Sichuan cuisine and Cantonese cuisine cannot be served continuously. (2) P cannot go before Q unless the second goes on Q. (3) P must go before X. (4) M must go before K, and K must go before N.
The order of serving from first to seventh is Q, M, X, P, K, N, L, and L is eligible.