There are 110 small balls of red, yellow, and blue colors, and they are mixed in a cloth bag. At least how many balls can be drawn at a time to ensure that there are 5 balls of the same color.
有红黄蓝三种颜色的小球各110个，混放在一个布袋里，一次至少摸出多少个球，才能保证有5个是同一种颜色的．
<gadget id="calculator">12 + 1</gadget>
<output>13</output>

<result>13</result>