There is a row of colored flags arranged in red, yellow, blue, green, purple, and blue. The last one is a green colored flag, and there are 9 green colored flags. How many colored flags are there in total?
有一排彩旗，按红、黄、蓝、绿、紫、青排列的，最后一面是绿色彩旗，而且绿色有9面，那么彩旗共有多少面．
<gadget id="calculator">9 - 1</gadget>
<output>8</output>

<gadget id="calculator">6 * 8</gadget>
<output>48</output>

<gadget id="calculator">48 + 4</gadget>
<output>52</output>

<result>52</result>