B3311331313231311331322331333132333133313132233133313232233132313331323212131   >>    B331133131323131133132233133313233313331313223313331323223313231333132321213   <<    B3311331313231311331322331333132333133313132233133313232233132313331323212133   >>      B3311331313231311331322331333132333133313132233133313232233132313331323212132   >>