public static long marcsCakewalk(List<Integer> calorie) {
    Comparator<Integer> comp = Integer::compare;
    List<Integer> cals = calorie.stream().sorted(comp.reversed()).collect(Collectors.toList());
    double mincal = 0;
    for(int i=0;i<cals.size();i++) {
        mincal +=  Math.pow(2, i)*cals.get(i);
    }        
    return (long)mincal;
}