Write a Python program that calculates the Factor of Safety $($FoS$)$ for a mechanical component based on user input. The program should prompt the user to enter the yield strength of the material $($in megapascals, MPa$)$ and the applied stress $($in MPa$),$ and then compute the FoS using the formula: FoS$=($Yield Strength$)/($Applied Stress$).$ Based on the calculated FoS, the program should classify the safety status as "Safe" if FoS $>3,$ "Caution" if $1\mathrm{.}51\mathrm{.}5,$ and "Danger" $if$ FoS $1\mathrm{.}5.$