B3311331313231311331322331333132313232213223313231333132322131121   >>    B331133131323131133132233133313231323221322331323133313232213112   <<    B3311331313231311331322331333132313232213223313231333132322131123   >>      B3311331313231311331322331333132313232213223313231333132322131122   >>