B3311331313231311331322331333132322331323231333133313331313233231   >>    B331133131323131133132233133313232233132323133313331333131323323   <<    B3311331313231311331322331333132322331323231333133313331313233233   >>      B3311331313231311331322331333132322331323231333133313331313233232   >>