B3311331313231311331322331333132333133313221133132313231333131121221   >>    B331133131323131133132233133313233313331322113313231323133313112122   <<    B3311331313231311331322331333132333133313221133132313231333131121223   >>      B3311331313231311331322331333132333133313221133132313231333131121222   >>