B3311331313231311331322331333132313331322331323133313332212323111   >>    B331133131323131133132233133313231333132233132313331333221232311   <<    B3311331313231311331322331333132313331322331323133313332212323113   >>      B3311331313231311331322331333132313331322331323133313332212323112   >>