using System;

public class Program

{

    public static void Main()

    {

        int a = 4, b = 7,count=0;

do {

for( int i=0; i<5; i+=2){

a /= 2;

b--; 

    count++;

}

} while (b > 4);

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

        Console.WriteLine("b"+b);

        Console.WriteLine("Изпълнения"+count);

    }

}