C31232233133313221211113313331333133313331212111111332313223231   >>    C3123223313331322121111331333133313331333121211111133231322323   <<    C31232233133313221211113313331333133313331212111111332313223233   >>      C31232233133313221211113313331333133313331212111111332313223232   >>