C1111233131211111211113313331333133313331333133311221121111331333131121111   >>    C111123313121111121111331333133313331333133313331122112111133133313112111   <<    C1111233131211111211113313331333133313331333133311221121111331333131121113   >>      C1111233131211111211113313331333133313331333133311221121111331333131121112   >>