B3311331313231311331322331333132313231333131323223313231121133132322233121   >>    B331133131323131133132233133313231323133313132322331323112113313232223312   <<    B3311331313231311331322331333132313231333131323223313231121133132322233123   >>      B3311331313231311331322331333132313231333131323223313231121133132322233122   >>