[8o]---- [8o]---- [8p]---- [8p]---- [8o]---- [8o]---- [7o]---- [7o]---- [8o]-o-o-o- [8p]-p-p-p- [8o]-o-o-o- [7o]-o-o-o- [8o]-w-0-w- [8p]-e-q-e- [8o]-w-0-w- [7o]-w-9-w- [8o] 0 w 0 8 0 w 0 [8p] q e q 8 q e q [8o] 0 w 0 8 0 w 0 [7o] 9 w 9 7 9 w 9 [8o] t o t o t o t [qp] t p t p t p t [8o] t o t o t o t [wo] r o r o r o r