On the National Day, colorful lights were hung on the roadside, and Xiaohong saw that there was a yellow light and a green light between every two red lights. If the first light is red, what color is the 60th light?
国庆节，路旁挂起了一盏盏彩灯，小红看到每两盏红灯之间都有黄、绿灯各一盏．若第一盏为红灯，那么第60盏灯是什么颜色的灯？
<result>60</result>