C312322331333132212111133133313331333131133113313331333131133132333112312121   >>    C31232233133313221211113313331333133313113311331333133313113313233311231212   <<    C312322331333132212111133133313331333131133113313331333131133132333112312123   >>      C312322331333132212111133133313331333131133113313331333131133132333112312122   >>