C313212111113331323312111133133313331333133313331333133313331333131331231211   >>    C31321211111333132331211113313331333133313331333133313331333133313133123121   <<    C313212111113331323312111133133313331333133313331333133313331333131331231213   >>      C313212111113331323312111133133313331333133313331333133313331333131331231212   >>