B3311331313231311331322331333132313231333133313311221211111333132233312112111   >>    B331133131323131133132233133313231323133313331331122121111133313223331211211   <<    B3311331313231311331322331333132313231333133313311221211111333132233312112113   >>      B3311331313231311331322331333132313231333133313311221211111333132233312112112   >>