human
Solve the following python programming problem given the following code:
def countRangeSum(self, nums, lower, upper) : 
    '
        :type nums: List[int]
        :type lower: int
        :type upper: int
        :rtype: int
        ' 
    def countAndMergeSort(sums, start, end, lower, upper) : 
        if ((end - start) <= 0) : 
            return 0 
mid = (start + ((end - start) / 2)) 
        count = (countAndMergeSort (sums, start, mid, lower, upper) + countAndMergeSort (sums, (mid + 1), end, lower, upper)) 
        (j, k, r) = ((mid + 1), (mid + 1), (mid + 1)) 
        tmp = [] 
        for i in xrange (start, (mid + 1)) : 
            while ((k <= end) and ((sums [k] - sums [i]) < lower)) : 
                k += 1 
while ((j <= end) and ((sums [j] - sums [i]) <= upper)) : 
                j += 1 
count += (j - k) 
            while ((r <= end) and (sums [r] < sums [i])) : 
                tmp.append (sums [r]) 
                r += 1 
tmp.append (sums [i]) 
sums [start : (start + len (tmp))] = tmp 
        return count 
sums = ([0] * (len (nums) + 1)) 
    for i in xrange (len (nums)) : 
        sums [(i + 1)] = (sums [i] + nums [i]) 
return countAndMergeSort (countAndMergeSort, 0, (len (sums) - 1), lower, upper) 

    
    

    Fix the buggy line: return countAndMergeSort (countAndMergeSort, 0, (len (sums) - 1), lower, upper)
assistant
#Here is Python program to fix the buggy line: return countAndMergeSort (countAndMergeSort, 0, (len (sums) - 1), lower, upper)
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return countAndMergeSort (sums, 0, (len (sums) - 1), lower, upper)