C111123313121111121111331333133313331323231333133313113233232321   >>    C11112331312111112111133133313331333132323133313331311323323232   <<    C111123313121111121111331333133313331323231333133313113233232323   >>      C111123313121111121111331333133313331323231333133313113233232322   >>