using System;

public class Program

{

    public static void Main()

    {

        int a = 5,  b = 2;

for (int i=0; i<8; i=i+2) {

if (i>4) break;

a++;

b--;

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

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

}

​

    }

}