Count every 4 pieces of a pile of candies and count 2 pieces, and count every 5 pieces, and there are 3 pieces missing. What is the minimum number of pieces of candy in this pile?
一堆糖果每4个一数余2粒，每5个一数，少3粒，这堆糖果最少有多少粒．
<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">20 + 2</gadget>
<output>22</output>

<result>22</result>