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: 8, 18, ['4847', 'g', 'R', '9191', '5643', 'P', 'M', 'G', '9129', 'M', '731', 'U', 'i', '951', 'z', 'q', '6137', 'x', '4597']

G9129M731Ui951zq6137x