console.WriteLine("Enter your mark")
mark = console.ReadLine()
console.WriteLine("woah")
console.WriteLine("You got an A")
console.WriteLine("you had a B")
console.WriteLine("you had a C")
console.WriteLine("you had a D")
console.WriteLine("you had a E")
console.WriteLine("you had a F")
console.WriteLine("Would you like to enter another mark?")
again= console.ReadLine()
console.WriteLine("yeet")