B3311331313231311331322331333132322133313132333131333132322123221   >>    B331133131323131133132233133313232213331313233313133313232212322   <<    B3311331313231311331322331333132322133313132333131333132322123223   >>      B3311331313231311331322331333132322133313132333131333132322123222   >>