C31321211111333132331211113313331333133313331333133313331333112211231211   >>    C3132121111133313233121111331333133313331333133313331333133311221123121   <<    C31321211111333132331211113313331333133313331333133313331333112211231213   >>      C31321211111333132331211113313331333133313331333133313331333112211231212   >>