C312322331333132212111133133313331333131133113313331333233112311   >>    C31232233133313221211113313331333133313113311331333133323311231   <<    C312322331333132212111133133313331333131133113313331333233112313   >>      C312322331333132212111133133313331333131133113313331333233112312   >>