C31232233133313221211113313331333133313331212111111221123113131   >>    C3123223313331322121111331333133313331333121211111122112311313   <<    C31232233133313221211113313331333133313331212111111221123113133   >>      C31232233133313221211113313331333133313331212111111221123113132   >>