public static void whatFlavors(List<Integer> cost, int money) {
// Write your code here
Map<Integer, List<Integer>> costByIndex = new HashMap<>();
for(int i =0;i<cost.size();i++){
    int balance = money-cost.get(i);
    List<Integer> ids;
    if(costByIndex.containsKey(balance)){
        ids = costByIndex.get(balance);
    }else ids = new ArrayList<>();
    ids.add(i+1);
    costByIndex.put(balance, ids);
}


 for(int i =0;i<cost.size();i++){
    int balance = cost.get(i);
     if(costByIndex.containsKey(balance)&& (costByIndex.get(balance).get(0)!=(i+1))){
        int val1 = Math.min(i+1,costByIndex.get(balance).get(0));
        int val2 = Math.max(i+1,costByIndex.get(balance).get(0));
        System.out.println(val1+" "+val2);
        break;
    }
}