Given an array `nums`. We define a running sum of an array as `runningSum[i] = sum(nums[0]…nums[i])`.

Return the running sum of `nums`.

Example 1:

    Input: nums = [1,2,3,4]

    Output: [1,3,6,10]

    Explanation: Running sum is obtained as follows: [1, 1+2, 1+2+3, 1+2+3+4].

Example 2:

    Input: nums = [1,1,1,1,1]

    Output: [1,2,3,4,5]

    Explanation: Running sum is obtained as follows: [1, 1+1, 1+1+1, 1+1+1+1, 1+1+1+1+1].

Example 3:

    Input: nums = [3,1,2,10,1]

    Output: [3,4,6,16,17]

Constraints:

- `1 <= nums.length <= 1000`
- `-10^6 <= nums[i] <= 10^6`