C31232233133313221211113313331333133313331212111133133322133313232322221   >>    C3123223313331322121111331333133313331333121211113313332213331323232222   <<    C31232233133313221211113313331333133313331212111133133322133313232322223   >>      C31232233133313221211113313331333133313331212111133133322133313232322222   >>