Potential energy is given by

$.$ Read double variables objectMass, planetGravity, and objectHeight from input, respectively. Then, compute potentialEnergy using the formula. Finally, output "Potential energy is $"$ followed by the value of potentialEnergy to four digits after the decimal point. End with a newline.

Ex: If the input is $5\mathrm{.}06\mathrm{.}08\mathrm{.}0,$ then the output is:

Potential energy is $240\mathrm{.}0000$

Note: printf$()$ can be used with $"\%\mathrm{.}4$f$"$ to output a double to $4$ digits after the decimal point.