In a basket of eggs, 4 4 lands count 3 more, 5 5 lands count 4 more, 6 6 lands count 5 more. How many eggs are there at least in this basket?
一篮鸡蛋，4个4个地数多3个，5个5个地数多4个，6个6个地数多5个．这篮鸡蛋至少有多少个？
<gadget id="calculator">2 * 2 * 3 * 5</gadget>
<output>60</output>

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

<result>59</result>