C31232233133313221211113313331333131211113313223313232233133313233121   >>    C3123223313331322121111331333133313121111331322331323223313331323312   <<    C31232233133313221211113313331333131211113313223313232233133313233123   >>      C31232233133313221211113313331333131211113313223313232233133313233122   >>