public class List {
    private int[] list;

    public List(int length) {
        list = new int[length];
    }

    public void fillWithQuads() {
        for (int i = 0; i < list.length; i++) {
            list[i] = (10 + i) * (10 + i);
        }
    }

    public void printList() {
        for (int i = 1; i < list.length + 1; i++) {
            System.out.print(list[i - 1] + " ");

            if (i % 5 == 0)
                System.out.print("\n");
        }
    }
}