Xiaocen's mother goes to and from get off work by bus on Mondays, Wednesdays, and Fridays, takes the bus to work on Tuesdays, and Thursdays, and walks home. If you take the bus, the one-way fare is 1 yuan, and the weekly ticket is 9 yuan. Please help Xiao Cen's mother do the math, it is more cost-effective to buy a weekly ticket. Or is it better to buy a one-way ticket?
小岑的妈妈星期一、三、五乘公共汽车上、下班，星期二、四乘公共汽车上班，步行回家．如果乘公共汽车，单程票价1元，周票是9元．请你帮小岑妈妈算一算，到底是买周票合算．还是买单程票合算？
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">6 + 2</gadget>
<output>8</output>

<gadget id="calculator">1 * 8</gadget>
<output>8</output>

<result>8</result>