C31232233133313221211113313331333133313331212111133133322231121   >>    C3123223313331322121111331333133313331333121211113313332223112   <<    C31232233133313221211113313331333133313331212111133133322231123   >>      C31232233133313221211113313331333133313331212111133133322231122   >>