Try writing a program so that the volume is displayed accurately on the control panel even if the water level in the tank changes.

Enter the current water level $($m$)10$

Remaining quantity is $785\mathrm{.}0$ton

condition

The tank is a cylinder.

Input Output

Current water level $($m$)$ Remaining reserves expropriated

Enter the current water level and the remaining quantity is $785\mathrm{.}0$ tons.