There is a pile of chocolate beans, 3 pieces of 3 pieces or 4 pieces of 4 pieces or 5 pieces of 5 pieces, there is only 1 piece left, how many pieces of chocolate beans are there at least in this pile?
有一堆巧克力豆，3粒3粒地数或4粒4粒地数或5粒5粒地数，都剩1粒，这堆巧克力豆至少有多少粒？
<gadget id="calculator">3 * 4 * 5</gadget>
<output>60</output>

<gadget id="calculator">60 + 1</gadget>
<output>61</output>

<result>61</result>