C31232233133313221211113313331333133313331212111113331333131122233321   >>    C3123223313331322121111331333133313331333121211111333133313112223332   <<    C31232233133313221211113313331333133313331212111113331333131122233323   >>      C31232233133313221211113313331333133313331212111113331333131122233322   >>