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: 12, 20, ['A', '8237', 'V', 'G', '7409', 'd', 'c', '1153', 'N', '481', 'f', 'L', 'F', 'm', 'c', '8199', 's', '7319', 'g', 'z', '9945', '9903', '8643', '2887', 'C', '4601', 's']

zg7319s8199cmFL