Xiaoli shot four times in a shooting game. The first time he scored 94 rings, the second time he scored 82 rings, and the third and fourth time he scored 86 rings. What is the average score of Xiaoli's four shots?
小立在一次射击游戏中共射击了四次，第一次打94环，第二次打82环，第三次和第四次都打了86环．小立四次射击的平均成绩是多少环？
<gadget id="calculator">94 + 82 + 86 + 86</gadget>
<output>348</output>

<gadget id="calculator">348 / 4</gadget>
<output>87</output>

<result>87</result>