using System;

public class Program

{

    public static void Main()

    {

        int a = 3, b = 3;

if (a == b) {

 if (b > 0) {

a = a % b;

b -= a + b; 

}

}

else

{

 if (b == 0)  

 a = a + b;

}Console.WriteLine("a= " + a);

 Console.WriteLine("b= " + b);

​

    }

}