B3311331313231311331322331333132313231333131323223313231333132311211121   >>    B331133131323131133132233133313231323133313132322331323133313231121112   <<    B3311331313231311331322331333132313231333131323223313231333132311211123   >>      B3311331313231311331322331333132313231333131323223313231333132311211122   >>