B3311331313231311331322331333132313232233132322223313231333132323323231   >>    B331133131323131133132233133313231323223313232222331323133313232332323   <<    B3311331313231311331322331333132313232233132322223313231333132323323233   >>      B3311331313231311331322331333132313232233132322223313231333132323323232   >>