B3311331313231311331322331333132313232233132322223313231333132313331312321   >>    B331133131323131133132233133313231323223313232222331323133313231333131232   <<    B3311331313231311331322331333132313232233132322223313231333132313331312323   >>      B3311331313231311331322331333132313232233132322223313231333132313331312322   >>