A number of breads are given to A, B, and C to eat. A eats half of the whole bread by one piece, B eats the remaining half by one piece, and C eats the last half of the bread by one piece. How many breads are there?
若干个面包分给甲乙丙三个人吃，甲吃了全部的一半多1个，乙吃了剩余的一半多1个，丙吃了最后剩余的一半多1个，这样面包刚好全部吃完．原来有几个面包？
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">6 + 1</gadget>
<output>7</output>

<gadget id="calculator">7 * 2</gadget>
<output>14</output>

<result>14</result>