B3311331313231311331322331333132313231333131323223313232233121111123221   >>    B331133131323131133132233133313231323133313132322331323223312111112322   <<    B3311331313231311331322331333132313231333131323223313232233121111123223   >>      B3311331313231311331322331333132313231333131323223313232233121111123222   >>