累積：Bal b/f 0包+1包=1包 Bal c/f
省到累積：Bal b/f TW$5,516+早餐TW$0+午餐+TW$8+晚餐TW$96+不買茶啡TW$200=TW$5,820 Bal c/f
24,098KM-4KM=24,094KM
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