B3311331313231311331322331333132313231333133313311221323132322123221   >>    B331133131323131133132233133313231323133313331331122132313232212322   <<    B3311331313231311331322331333132313231333133313311221323132322123223   >>      B3311331313231311331322331333132313231333133313311221323132322123222   >>