C1111233131211111211113313331333133313331333133313331333133311233133313331121   >>    C111123313121111121111331333133313331333133313331333133313331123313331333112   <<    C1111233131211111211113313331333133313331333133313331333133311233133313331123   >>      C1111233131211111211113313331333133313331333133313331333133311233133313331122   >>