public static  T maximalElement (List list, int from, int to) {
        T max = list.get(from);
        for (int i = from + 1; i < to; i++) {
            T elem1 = list.get(i);
            if (elem1.compareTo(max) > 0) {
                max = elem1;
            }
        }
        return max;
    }