Write a C# Sharp program to check whether a triangle is Equilateral, Isosceles or Scalene

using System;  
public class Exercise14  
{  
    public static void Main() 
{  
    int sidea, sideb, sidec; 
    Console.Write("\n\n");
    Console.Write("Check whether a triangle is Equilateral, Isosceles or Scalene:\n");
    Console.Write("----------------------------------------------------------------");
    Console.Write("\n\n");



    Console.Write("Input side 1 of triangle: ");
    sidea= Convert.ToInt32(Console.ReadLine());

    Console.Write("Input side 2 of triangle: ");
    sideb= Convert.ToInt32(Console.ReadLine()); 

    Console.Write("Input side 3 of triangle: ");
    sidec= Convert.ToInt32(Console.ReadLine());  
 

  
    if(sidea==sideb && sideb==sidec) 
    {  
        Console.Write("This is an equilateral triangle.\n");  
    }  
    else if(sidea==sideb || sidea==sidec || sideb==sidec) 
    {  
        Console.Write("This is an isosceles triangle.\n");  
    }  
    else 
    {  
        Console.Write("This is a scalene triangle.\n");  
    }  
 } 
}