C31232233133313221211113313331333133313331212111133131133131122322121   >>    C3123223313331322121111331333133313331333121211113313113313112232212   <<    C31232233133313221211113313331333133313331212111133131133131122322123   >>      C31232233133313221211113313331333133313331212111133131133131122322122   >>