B3311331313231311331322331333132313231333133313311211111333132322223321   >>    B331133131323131133132233133313231323133313331331121111133313232222332   <<    B3311331313231311331322331333132313231333133313311211111333132322223323   >>      B3311331313231311331322331333132313231333133313311211111333132322223322   >>