C111123313121111121111331333133313331323231333133313231333112321312321   >>    C11112331312111112111133133313331333132323133313331323133311232131232   <<    C111123313121111121111331333133313331323231333133313231333112321312323   >>      C111123313121111121111331333133313331323231333133313231333112321312322   >>