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: 15, 18, ['W', 'j', 'c', '5265', 'o', 'D', '2787', '7025', '7353', 'N', 'k', 'z', '7911', '5035', '7427', 'L', 'w', 'C', '597', '1513', 'x', 'm', 'U', 'z', '807', '4743']

7427LwC