C312322331333132212111133133313331333131133113313331333133321233112321   >>    C31232233133313221211113313331333133313113311331333133313332123311232   <<    C312322331333132212111133133313331333131133113313331333133321233112323   >>      C312322331333132212111133133313331333131133113313331333133321233112322   >>