A box of chocolates, divided into 5 piles on average, left 4 pieces, divided into 4 piles on average, left 3 pieces, divided into 3 piles on average, left 2 pieces, how many pieces are there in this box of chocolates?
一盒巧克力，平均分成5堆剩4颗，平均分成4堆剩3颗，平均分成3堆剩2颗，请问这盒巧克力一共有多少颗？
<gadget id="calculator">5 * 4 * 3</gadget>
<output>60</output>

<gadget id="calculator">60 - 1</gadget>
<output>59</output>

<result>59</result>