package ru.osetsky;

public class Counter {
	public int sum;
	public int count;
	public int add (int start, int finish){
		count++;
		while (count>finish) {
			count++;
			if ( (count % 2) == 0) {
				sum = sum + count;
			}		
		}
		return sum;
	}
}
@@ -117,26 +117,30 @@
 sh)%7B%0A%09%09count
-++
+=start
 ;%0A%09%09while (c

Add change counter