B3311331313231311331322331333132313231333133313311211111323221322332311   >>    B331133131323131133132233133313231323133313331331121111132322132233231   <<    B3311331313231311331322331333132313231333133313311211111323221322332313   >>      B3311331313231311331322331333132313231333133313311211111323221322332312   >>