There are 3 red balls, 4 yellow balls and 5 white balls in the bag, and Xiao Ming randomly takes 6 balls out of them, so how many possibilities are there for the color matching situation he asked for?
袋中有3个红球，4个黄球和5个白球，小明从中任意拿出6个球，那么他拿出求的颜色搭配情况一共有多少种可能．
<gadget id="calculator">4 + 5 + 5 + 4</gadget>
<output>18</output>

<result>18</result>