For a barrel of oil, half of the oil is used for the first time, and the remaining half is more than 1 kg for the second time, leaving 14 kg. How much does the barrel of oil originally weigh?
一桶油，第一次用去全部的一半，第二次用去余下的一半多1千克，还剩14千克，这桶油原来重多少千克？
<gadget id="calculator">14 + 1</gadget>
<output>15</output>

<gadget id="calculator">15 * 2 * 2</gadget>
<output>60</output>

<result>60</result>