C31232233133313221211113313331333133313331212111133221333112321   >>    C3123223313331322121111331333133313331333121211113322133311232   <<    C31232233133313221211113313331333133313331212111133221333112323   >>      C31232233133313221211113313331333133313331212111133221333112322   >>