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: 8, 21, ['3263', '6157', 'j', 'n', '1259', '8823', '9917', 'f', '3313', 'B', '6683', 'g', 'x', 'Y', '5159', '5093', '7207', '3663', '933', '3179', '4429', '3659', '7509', '4249']

442931799333663720750935159Yxg6683B3313f