C111123313121111121111331333133313331323231333133313331121211111312321321   >>    C11112331312111112111133133313331333132323133313331333112121111131232132   <<    C111123313121111121111331333133313331323231333133313331121211111312321323   >>      C111123313121111121111331333133313331323231333133313331121211111312321322   >>