The average of the three numbers A, B, and C is 60, the number of A is 58, and the number of B is 4 greater than the number of A. What is the number of C?
甲、乙、丙三个数的平均数是60，甲数是58，乙数比甲数大4，求丙数是几？
<gadget id="calculator">60 * 3</gadget>
<output>180</output>

<gadget id="calculator">58 + 4</gadget>
<output>62</output>

<gadget id="calculator">180 - 58 - 62</gadget>
<output>60</output>

<result>60</result>