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 find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output 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. Perform the operations in order, i.e., do not concatenate the elements and then reverse the string.
Input: 1, 8, ['s', 'R', 'E', '3449', '1987', 'S', 'l', 'g', 'X', '7309', 'Q', '6037', '5253', '527', 'o', '21', 'U', 'S', '2431', 'k', 'I', '3571', '9189', 'g', '4253', 'q']

glS19873449ERs