$2-$ The program consists of Vehicle Entry to the Park, Vehicle Exit from the Park and Program Exit, depending on the user's choice. In the Vehicle Entry menu, if the number of vehicles is $20,$ it will give a Car Park Full warning, if not, take the license plate from the user and show the number of vehicles entered. In the Vehicle Exit menu, it should ask for the license plate and how many hours are left. If there is $1$ hour left, pay $5TL,$ if $2$ hours are left, $10TL,$ if $3$ hours are left, $15TL,$ and if more than $3$ hours, $40TL.$ Also, reduce the number of vehicles. The program stops when $-1$ is entered $(20$ points$).$

Program Output:

Vehicle Entry $(1)$

Vehicle Exit $(2)$

Program Exit $(-1)$

Write it in C# please!

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