import java.util.Iterator;

class EgenMap implements Iterable<String> {
    String[] keys;
    Integer[] vals;
    int indeks;
    int max;

    public EgenMap(int max) {
        this.max = max;
        keys = new String[max];
        vals = new Integer[max];
        indeks = 0;
    }

    public void settInn(String k, Integer v) {
        if (indeks == max) {
            System.out.println("Fullt " + k + " " + v + " ble ikke lagt til");
            return;
        }
        keys[indeks] = k;
        vals[indeks] = v;
        indeks++;
    }

    public Integer hent(String k) {
        for (int i = 0; i < max; i++) {
            if (k.equals(keys[i])) {
                return vals[i];
            }
        }
        return null;
    }

    @Override
    public String toString() {
        String ut = "";
        for (String s : this) {
            ut += s + "=" + hent(s) + ", ";
        }
        return ut.substring(0, ut.length() - 2);
    }

    @Override
    public Iterator<String> iterator() {
        return new EgenMapIterator();
    }

    private class EgenMapIterator implements Iterator<String> {
        int currentIndex = 0;

        @Override
        public String next() {
            return keys[currentIndex++];
        }

        @Override
        public boolean hasNext() {
            return currentIndex < indeks;
        }
    }
}