C313212111113331323312111133133313331333133313331333133313113313221232313231   >>    C31321211111333132331211113313331333133313331333133313331311331322123231323   <<    C313212111113331323312111133133313331333133313331333133313113313221232313233   >>      C313212111113331323312111133133313331333133313331333133313113313221232313232   >>