Use a frying pan to pancake, and put two cakes at the same time at a time. If it takes 2 minutes to cook a cake (1 minute for each side), then how many minutes will it take to bake 97 cakes?
用一只平底锅烙饼，每次能同时放两块饼．如果烙熟一个饼需要2分钟(每面各要1分钟)，那么烙97个饼，至少需要多少分钟．
<gadget id="calculator">1 * 3</gadget>
<output>3</output>

<gadget id="calculator">97 - 3</gadget>
<output>94</output>

<gadget id="calculator">94 / 2</gadget>
<output>47</output>

<gadget id="calculator">47 * 2</gadget>
<output>94</output>

<gadget id="calculator">94 + 3</gadget>
<output>97</output>

<result>97</result>