[3u] [4i] [6o] [7a]---- [3u]---- i-4--- [5o]---- [6p]---- [7a]---- s-8--- [9d]---- [0f]--- [3u] [4i][5o]---- [3u][4i] [6i]---- [3u] u 7 7 a a - [0f] [qf] - [7a] [0s] - [4i] [qg]---- [3u] [4u] o o 5-- [7a]---- [3u]-[5o] [7a]--- [7r]---- [1t]---- [2y]---- [3u]---- [4i]---- [5o]---- [6p]---- [7a]---- [8s]---- [9d]---- [0f]---- [3f]---- [9d]---- [0f]