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: 3, 14, ['8363', 'Y', '8539', 'k', '1267', 'P', '8751', 'W', '7799', 'g', 'A', '3843', '9661', '7231', '795', 'w', 'R', '8113', 'u']

8539k1267P8751W7799gA384396617231