Definition: In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to concatenate all elements of A from the ith element to the jth element, and print the resultant string. i and j will be non-negative, and will always have a value less than the length of A. i will always be less than j.
Input: 18, 26, ['1067', 'w', '6993', '4573', 'b', 'y', 'u', 'f', '5119', '8219', 'M', 'H', '3107', '2673', 'b', '7207', '2835', '7385', '6027', 'O', '2019', '9875', 'l', '5939', 'c', '5427']

73856027O20199875l5939c5427