A and B start a production competition. A made 100 parts on the first day, became proficient in the second day, and made 4 more parts, and then made 4 more parts every day than the previous day. B made 50 parts in the first half of the first day, and made 1 more part in the second half of the day. After that, he made 1 more part every half day than the first half. After working for 5 days, who made more parts? How many parts to make?
甲、乙两人开展生产竞赛．甲第一天做了100个零件，第二天技术熟练了，多做了4个零件，以后每天都比前一天多做4个零件．乙第一天上半天做了50个零件，下半天多做了1个零件，以后每半天都比上半天多做1个零件，工作5天后，谁做得零件多？多做几个零件？
<gadget id="calculator">50 * 10</gadget>
<output>500</output>

<gadget id="calculator">1 + 9</gadget>
<output>10</output>

<gadget id="calculator">9 / 2</gadget>
<output>9/2 = around 4.5</output>

<gadget id="calculator">10 * (9/2)</gadget>
<output>45</output>

<gadget id="calculator">500 + 45</gadget>
<output>545</output>

<gadget id="calculator">100 * 5</gadget>
<output>500</output>

<gadget id="calculator">1 + 2 + 3 + 4</gadget>
<output>10</output>

<gadget id="calculator">4 * 10</gadget>
<output>40</output>

<gadget id="calculator">500 + 40</gadget>
<output>540</output>

<gadget id="calculator">545 - 540</gadget>
<output>5</output>

<result>5</result>