B3311331313231311331322331333132322331313231211113313112221121131   >>    B331133131323131133132233133313232233131323121111331311222112113   <<    B3311331313231311331322331333132322331313231211113313112221121133   >>      B3311331313231311331322331333132322331313231211113313112221121132   >>