B3311331313231311331322331333132333132211312111133133313331311331322123121   >>    B331133131323131133132233133313233313221131211113313331333131133132212312   <<    B3311331313231311331322331333132333132211312111133133313331311331322123123   >>      B3311331313231311331322331333132333132211312111133133313331311331322123122   >>