C31232233133313221211113313331333133313332321333131133132332323321   >>    C3123223313331322121111331333133313331333232133313113313233232332   <<    C31232233133313221211113313331333133313332321333131133132332323323   >>      C31232233133313221211113313331333133313332321333131133132332323322   >>