public static List<Integer> maxSubarray(List<Integer> arr) {
        int sum = arr.get(0);
        int maxSubSum = sum;
        int sumSequences = sum;
        
        for(int i = 1; i<arr.size(); i++){
            int number =arr.get(i);
            
            sum =Math.max(sum+number, number);
            maxSubSum = Math.max(maxSubSum, sum);

            if(sumSequences<0){
                sumSequences = Math.max(number, sumSequences);
            }else{
                sumSequences += Math.max(0, number);
            }
            
        }
        
        return Arrays.asList(maxSubSum, sumSequences); 
    }