Write a program calculate$\_$fee$($member$\_$age, loyalty$\_$status$),$ that calculates and returns the appropriate membership cost $($as an integer$)$ based on the member age $($member$\_$age$)$ and loyalty status $($loyalty$\_$status$)$ of an individual. The initial cost and discount ratio are specified as follows:

For member age below $25$: initial cost is $$50.$

For member ages $25$ to $40$: initial cost is $$100.$

For member ages $41$ to $60$: initial cost is $$200.$

For member ages $61$ and above: initial cost is $$300.$

Loyalty Status:

"good": $20\%$ discount $($discount ratio $=0\mathrm{.}8)$

"regular": No discount $($discount ratio $=1)$

"lapsed": $50\%$ surcharge $($discount ratio $=1\mathrm{.}5)$

The formula for calculating the membership cost is: membership cost $=$ initial cost $*$ discount ratio. Given the member age and loyalty status $($please use the exact strings "good", "regular", "lapsed"$),$ the program should return the membership cost as an integer.

It is assured that member$\_$age $>=1$ and loyalty$\_$status is one of "good","regular" or "lapsed".

Example:

member$\_$age $=27$

loyalty$\_$status $=$ "good"

calculate$\_$fee$($member$\_$age, loyalty$\_$status$)-->80$

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Explanation:

Based on the member$\_$age and loyalty status, the initial cost and discount ratio are $100$ and $0\mathrm{.}8$ respectively.

Thus the membership cost is $100*0\mathrm{.}8=80.$

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