B3311331313231311331322331333132333133313223312111133132313232233231   >>    B331133131323131133132233133313233313331322331211113313231323223323   <<    B3311331313231311331322331333132333133313223312111133132313232233233   >>      B3311331313231311331322331333132333133313223312111133132313232233232   >>