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, 25, ['M', '5749', 'O', '893', '4947', 'o', '6043', 'w', '8705', '6553', 'D', 'a', '3263', '5831', 'y', 'G', 'z', 'b', '3523', 'v', 'u', '6863', '9963', 'W', 'P', 'X']

b3523vu68639963WP