C313212111113331323312111133133313331333133313331312111133133313232131211   >>    C31321211111333132331211113313331333133313331333131211113313331323213121   <<    C313212111113331323312111133133313331333133313331312111133133313232131213   >>      C313212111113331323312111133133313331333133313331312111133133313232131212   >>