A, B, and C respectively represent 3 integers, known: A/B/C=5, A/BC=12, AB=84. So what is the result of A*B*C?
A、B、C分别表示3个整数，已知：A/B/C=5，A/B-C=12，A-B=84．那么A*B*C的结果是多少？
<gadget id="calculator">15 * 6</gadget>
<output>90</output>

<gadget id="calculator">90 * 6 * 3</gadget>
<output>1_620</output>

<result>1_620</result>