C313212111113331323312111133133313331333133313331333133313331333133313232121231   >>    C31321211111333132331211113313331333133313331333133313331333133313331323212123   <<    C313212111113331323312111133133313331333133313331333133313331333133313232121233   >>      C313212111113331323312111133133313331333133313331333133313331333133313232121232   >>