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: 5, 13, ['8537', 'q', 'a', '1309', '9263', 'X', 'y', '2781', 'q', '5417', 'm', 'N', 'u', '403', '8171', '7651', 'w', 'R', 'w', '9789', 'l', '8039', 'Q', '6391', 'f']

9263Xy2781q5417mNu