C111112111133131121133133313331333133313331323133313331323121111331121121   >>    C11111211113313112113313331333133313331333132313331333132312111133112112   <<    C111112111133131121133133313331333133313331323133313331323121111331121123   >>      C111112111133131121133133313331333133313331323133313331323121111331121122   >>