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: 6, 19, ['6925', 'O', '9467', 'L', '9025', '4775', '4053', 'T', '6097', 'x', 'n', '9717', 'S', '8107', 'x', '9813', '8997', 'c', 'q', '7155', 'N', '7427', 'M', 'g', '4831', '9693', '7145', 'l']

qc89979813x8107S9717nx6097T40534775