C313212111113331323312111133133313331333133313331333133311312311   >>    C31321211111333132331211113313331333133313331333133313331131231   <<    C313212111113331323312111133133313331333133313331333133311312313   >>      C313212111113331323312111133133313331333133313331333133311312312   >>