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, 7, ['9757', '1951', '9777', '1737', '4381', 'i', '7213', 'K', 'V', '21', 'y', 'O', '4207', '1801', 'W', '5327', 'T', 'e', '2733', 'R', 'z', 'e', 'm', '1261', '1205', '4021', '1263', 's']

7213i