import java.util.concurrent.ConcurrentHashMap;

public class Task131125 {
    public static void main(String[] args) {
        ConcurrentHashMap<String, Integer> map = new ConcurrentHashMap<>();
        map.put("a", 1);
        map.put("b", 2);
        map.put("c", 3);
        
        int result = map.reduce(2, 
            (k, v) -> k.length() + v, 
            Integer::sum
        );
        
        System.out.println(result);
    }
}