The students planted 12 trees last year, but the number of trees planted this year is 4 times less than last year's 12 times. How many trees were planted in total last year and this year?
同学们去年植树12棵，今年植树的棵数比去年的12倍少4棵，去年和今年一共植树多少棵？
<gadget id="calculator">12 * 12</gadget>
<output>144</output>

<gadget id="calculator">144 - 4</gadget>
<output>140</output>

<gadget id="calculator">140 + 12</gadget>
<output>152</output>

<result>152</result>