<> <> <<>> <> <<>> <> << >> 7 7 7 7 7 7 7 | 7F 6 6 6 6 6 6 6 | 3F 5 5 5 5 5 5 5 | 1F 4 4 4 4 4 4 4 | F 3 3 3 3 3 3 3 | 7 2 2 2 2 2 2 2 | 3 1 1 1 1 1 1 1 | 1 0 0 0 0 0 0 0 | 0