C111123313121111121111331333133313331322121111331333133313231333132232321   >>    C11112331312111112111133133313331333132212111133133313331323133313223232   <<    C111123313121111121111331333133313331322121111331333133313231333132232323   >>      C111123313121111121111331333133313331322121111331333133313231333132232322   >>