C31232233133313221211113313331333133313331212111112111113213131   >>    C3123223313331322121111331333133313331333121211111211111321313   <<    C31232233133313221211113313331333133313331212111112111113213133   >>      C31232233133313221211113313331333133313331212111112111113213132   >>