C31232233133313221211113313331333133313331212111133131211111231331121   >>    C3123223313331322121111331333133313331333121211113313121111123133112   <<    C31232233133313221211113313331333133313331212111133131211111231331123   >>      C31232233133313221211113313331333133313331212111133131211111231331122   >>