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: 4, 6, ['U', '5099', '1125', 'U', '1693', '7717', 'P', '7679', 'E', '7747', 'D', 'Z', 'E', '4473']
Example Output: 77171693U

Example Input: 3, 12, ['5813', 'Y', 'n', '9651', '5647', '3119', '6929', '2501', '17', 'k', 'h', '595', '5007', 'q', '179', 'c', 'Q', 'M']
Example Output: 595hk1725016929311956479651n

Example Input: 6, 11, ['43', 'q', '4009', 'u', 'S', '8657', '8297', '7033', '7263', '8927', '6363', '6925', '6529', 'c']
Example Output:
636389277263703382978657