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: 5, 12, ['9625', 'H', '1625', 'l', 'L', 'm', 'n', 'G', 'l', '7759', '4845', '6119', 'g', '4607', 'n', '6215', '8739', 'g', '6747', '8481', 'j', 'Q', 'V', 'v', 'L', '535', 'b']

611948457759lGnmL