B3311331313231311331322331333132311233132333131123313231333132322332321   >>    B331133131323131133132233133313231123313233313112331323133313232233232   <<    B3311331313231311331322331333132311233132333131123313231333132322332323   >>      B3311331313231311331322331333132311233132333131123313231333132322332322   >>