B3311331313231311331322331333132313233313231333131123313331322332221   >>    B331133131323131133132233133313231323331323133313112331333132233222   <<    B3311331313231311331322331333132313233313231333131123313331322332223   >>      B3311331313231311331322331333132313233313231333131123313331322332222   >>