Xiao Wang weighs 36.5 kilograms, Xiao Li weighs 41.4 kilograms, and a sumo wrestler weighs 125.8 kilograms. How many kilograms is the weight of this athlete heavier than the sum of the weights of Xiao Wang and Xiao Li?
小王重36.5千克，小李重41.4千克，一个相扑运动员的体重是125.8千克，这个运动员的体重比小王，小李两人的体重和还要重多少千克？
<gadget id="calculator">36.5 + 41.4</gadget>
<output>77.9</output>

<gadget id="calculator">125.8 - 77.9</gadget>
<output>47.9</output>

<result>47.9</result>