Answer
$1.52\times10^7J$
Work Step by Step
In the worked-out example, the total energy “burned” was $1.15\times10^7J$. Subtract the energy for an hour of desk work, and add the energy for an hour of running.
$$E=1.15\times10^7J-(115J/s)(3600s)+(1150J/s)(3600s)=1.52\times10^7J$$