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: 1, 20, ['8479', '3125', '3409', '6285', '5469', 'c', '5195', '9479', '5543', '2403', 'N', 'O', 'G', '8613', 'O', 'q', '71', '8617', 'H', '1975', 'g', '8457', 'o', '6257', '1765', 'G', 'F', '531', 'z', 'C']

1975H861771qO8613GON2403554394795195c54696285340931258479