B33113313132313113313223313331311331313232212121111331323131323221   >>    B3311331313231311331322331333131133131323221212111133132313132322   <<    B33113313132313113313223313331311331313232212121111331323131323223   >>      B33113313132313113313223313331311331313232212121111331323131323222   >>