Xiaopang has subscribed to two magazines this year: "Children's World" and "Story World". The monthly fee for "Children's World" is 5.4 yuan, and "Story World" is 7.8 yuan per month. How much is the total charge for these two magazines throughout the year?
小胖今年订了2种杂志：《儿童世界》和《故事天地》，《儿童世界》每月收费5.4元，《故事天地》每月收费7.8元．这两种杂志全年共收费多少元．
<gadget id="calculator">5.4 + 7.8</gadget>
<output>13.2</output>

<gadget id="calculator">13.2 * 12</gadget>
<output>158.4</output>

<result>158.4</result>