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: 17, 20, ['7885', 's', 'h', '2369', 'O', 'V', '5763', 'h', '3045', '8305', '3705', '7753', '1665', '8117', 's', '159', '2869', 'a', '8405', '2797']

2869a84052797