How do I run the program again without closing the console.

Question

Hello, I am not sure if the title is clear enough. (I think it's pretty confusing though)
So, I have a program which gets the user input( a number from 0 to 100) this being the score to a test and displays the letter grade (From A to F) according to the score.
My question: What do I have to do in order for my program to ask me again for an input after it displayed the letter score for my first input?
Example:
My program says: "Please enter the score."
User enters the score.
Program says: You got an A. Congratulations.
And then it ends.
Now I want to write the code for it to ask me again if I want to enter another score or if I want to close the program.
The code for what I already wrote is in my profile.
Would be glad for some suggestion so I could try to implement the idea by myself first.
Thank you!

Answer 1

Hi :)
Thank you.