There are 96 students in Class A and Class B, 89 students in Class B and Class C, and 88 students in Class C and D. Excuse me: How many people are there in Class A and Class D?
甲班和乙班共96人，乙班和丙班共89人，丙班和丁班共88人．请问：甲班和丁班共多少人．
<gadget id="calculator">96 + 89 + 88</gadget>
<output>273</output>

<gadget id="calculator">89 * 2</gadget>
<output>178</output>

<gadget id="calculator">273 - 178</gadget>
<output>95</output>

<result>95</result>