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.

Example Input: 6, 8, ['y', 'g', 'I', '7137', '1589', '6209', '9823', '4543', '8683', 'L', 'H', '1937', 'R', 'c', 'E', 'l', '4221', '7981']
Example Output: 454398236209

Example Input: 2, 3, ['p', 'A', 'Y', '1837', '7973', '1599']
Example Output: YA

Example Input: 16, 20, ['1699', '5729', '873', '1617', 'C', 'o', 'z', '4161', '9165', '4497', 'F', 'i', '5525', 't', '103', '9253', 'Z', '4991', 'z', '913', '3357', 'D', '3779', 'F', '7099', '241', 'E', '7887']
Example Output:
913z4991Z9253