To decorate the Office of Hope Star Teaching and Research Center, Team A will complete the project in 16 days alone, and Team B will complete it in 32 days. Now the two teams are working together to decorate. During this period, Team A rested for 3 days, and Team B rested for 1 day. How many days did it take Team B to complete the project? (Both teams do not rest at the same time)
装修希望之星教研中心办公室，甲队单独做需16天完工，乙队单独做需32天完工，现两队合作一起装修，期间甲队休息了3天，乙休息了1天，那么甲队和乙队完成此项工程共用了多少天？(两队不同时休息)
<gadget id="calculator">1 / 32</gadget>
<output>1/32 = around 0.03125</output>

<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">(1/32) * 2</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">1 - (1/16)</gadget>
<output>15/16 = around 0.9375</output>

<gadget id="calculator">1 / 16</gadget>
<output>1/16 = around 0.0625</output>

<gadget id="calculator">(1/16) + (1/32)</gadget>
<output>3/32 = around 0.09375</output>

<gadget id="calculator">(15/16) / (3/32)</gadget>
<output>10</output>

<gadget id="calculator">10 + 3</gadget>
<output>13</output>

<result>13</result>