There are several small flags in five colors: red, yellow, black, white, and blue, and each small flag has one color. Take any 3 small flags and line them up to represent signals. How many different signals can be represented in total?
有红、黄、黑、白、蓝5种颜色的小旗若干，每面小旗一种颜色．任取其中3面小旗排成一行表示信号，问共可表示多少种不同的信号？
<gadget id="calculator">5 * 5 * 5</gadget>
<output>125</output>

<result>125</result>