public class Solution {

    /*

     * @param nums: A list of integers

     * @return: A list of integers includes the index of the first number and the index of the last number

     */

    public List<Integer> subarraySum(int[] nums) {

        // write your code here

        ArrayList<Integer> res = new ArrayList<Integer>();

        for(int i = 0;i < nums.length ; i ++){

            int sum = 0;

            for(int j = i; j < nums.length ;j++){

                sum = sum + nums[j];

                if(sum == 0){

                    res.add(i);

                    res.add(j);

                    return res;

                }

            }

        }

        return res;

    }

}