private int F2(int W)
        {
            int[] res = new int[W + 1];
            res[0] = 0;

            for (int i = 1; i < W; i++)
            {
                res[i] = res[W - weights[i - 1]] + values[i - 1];
            }

            if (W < 1)
            {
                return res[W];
            }
            else
            {
                return res[W] + values[W - 1];
            }
        }