C312322331333132212111133133313331333131133113313331333222122321   >>    C31232233133313221211113313331333133313113311331333133322212232   <<    C312322331333132212111133133313331333131133113313331333222122323   >>      C312322331333132212111133133313331333131133113313331333222122322   >>