C31232233133313221211113313331333133313331212111112111133121111123233131   >>    C3123223313331322121111331333133313331333121211111211113312111112323313   <<    C31232233133313221211113313331333133313331212111112111133121111123233133   >>      C31232233133313221211113313331333133313331212111112111133121111123233132   >>