C313212111113331323312111133133313331333133313331333133313331333131232311312121   >>    C31321211111333132331211113313331333133313331333133313331333133313123231131212   <<    C313212111113331323312111133133313331333133313331333133313331333131232311312123   >>      C313212111113331323312111133133313331333133313331333133313331333131232311312122   >>