C313212111113331323312111133133313331333133313331333133313331333133313223222211   >>    C31321211111333132331211113313331333133313331333133313331333133313331322322221   <<    C313212111113331323312111133133313331333133313331333133313331333133313223222213   >>      C313212111113331323312111133133313331333133313331333133313331333133313223222212   >>