C1111233131211111211113313331333133313331333133311221121111331131   >>    C111123313121111121111331333133313331333133313331122112111133113   <<    C1111233131211111211113313331333133313331333133311221121111331133   >>      C1111233131211111211113313331333133313331333133311221121111331132   >>