B3311331313231311331322331333132313331323232233133313231323231121   >>    B331133131323131133132233133313231333132323223313331323132323112   <<    B3311331313231311331322331333132313331323232233133313231323231123   >>      B3311331313231311331322331333132313331323232233133313231323231122   >>