A building is 43 meters high, the first floor is 4.6 meters high, and the other floors are 3.2 meters high. How many floors does this building have?
一幢楼高43米，第一层高4.6米，其余每层高度都是3.2米，这幢楼共有多少层？
<gadget id="calculator">43 - 4.6</gadget>
<output>38.4</output>

<gadget id="calculator">38.4 / 3.2</gadget>
<output>12</output>

<gadget id="calculator">12 + 1</gadget>
<output>13</output>

<result>13</result>