def arrayMaxConsecutiveSum(inputArray, k):

    start_list = inputArray[0:k]
    max_sum = sum(start_list)
    for item in range(1,len(inputArray) - k + 1 ):

        start_list.pop(0)
        start_list.append(inputArray[item + k - 1])

        max_sum = max(sum(start_list), max_sum)

    return max_sum