find area of a cube in csharp

main.cs
surfaceArea = 6 * (side * side)
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2 lines

main.cs
using System;

class Program {
    static void Main(string[] args) {
        double side, surfaceArea;

        Console.WriteLine("Enter the length of one side of the cube: ");
        side = double.Parse(Console.ReadLine());

        surfaceArea = 6 * (side * side);

        Console.WriteLine("The surface area of the cube is: " + surfaceArea);
    }
}
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