public ArrayList<ArrayList<Integer> > FindContinuousSequence(int sum) {
             ArrayList<ArrayList<Integer>> res=new ArrayList<ArrayList<Integer>>();
            if(sum<2) return res;
            
            for(int i = 1; i <= sum/2 ; i++ ){
                ArrayList<Integer> temp = new ArrayList<Integer>();
                int count=0;
                for(int j=i; j < sum ;j++){
                    count+=j;
                    temp.add(j);
                    if(count > sum)
                        break;
                    else if(count==sum){
                        res.add(temp);
                        break;
                    }
                  
                }
            }
        return res;
    }