C31232233133313221211113313331333133313331212111133121111123133311331   >>    C3123223313331322121111331333133313331333121211113312111112313331133   <<    C31232233133313221211113313331333133313331212111133121111123133311333   >>      C31232233133313221211113313331333133313331212111133121111123133311332   >>