The average of the three numbers A, B, and C is 97. It is known that the number of A is 95, and the number of B is 92. What is the number of C?
甲乙丙三个数的平均数是97，已知甲数是95，乙数是92，丙数是多少．
<gadget id="calculator">97 * 3</gadget>
<output>291</output>

<gadget id="calculator">291 - 95 - 92</gadget>
<output>104</output>

<result>104</result>