C31321211111333132331211113313331333133313331333133313311211113311212121   >>    C3132121111133313233121111331333133313331333133313331331121111331121212   <<    C31321211111333132331211113313331333133313331333133313311211113311212123   >>      C31321211111333132331211113313331333133313331333133313311211113311212122   >>