C313212111113331323312111133133313331333133313331333133313331331121111133123311   >>    C31321211111333132331211113313331333133313331333133313331333133112111113312331   <<    C313212111113331323312111133133313331333133313331333133313331331121111133123313   >>      C313212111113331323312111133133313331333133313331333133313331331121111133123312   >>