B3311331313231311331322331333132313231333133313311221211111333132233132211   >>    B331133131323131133132233133313231323133313331331122121111133313223313221   <<    B3311331313231311331322331333132313231333133313311221211111333132233132213   >>      B3311331313231311331322331333132313231333133313311221211111333132233132212   >>