B3311331313231311331322331333132313331322331323133313233211111133132322333231   >>    B331133131323131133132233133313231333132233132313331323321111113313232233323   <<    B3311331313231311331322331333132313331322331323133313233211111133132322333233   >>      B3311331313231311331322331333132313331322331323133313233211111133132322333232   >>