B3311331313231311331322331333132333133313132233133313232233131133131221   >>    B331133131323131133132233133313233313331313223313331323223313113313122   <<    B3311331313231311331322331333132333133313132233133313232233131133131223   >>      B3311331313231311331322331333132333133313132233133313232233131133131222   >>