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: 3, 3, ['U', '8399', '645', '3165']
Example Output: 645

Example Input: 3, 11, ['M', '1269', '8573', 'S', 'f', 'B', '3667', '3561', 'i', 'A', '3687']
Example Output: 3687Ai35613667BfS8573

Example Input: 6, 13, ['h', '6399', '6061', 'y', 'F', '5685', 'z', 'P', '7509', '4927', '5803', 'h', '1163', '2665', '4391']
Example Output:
1163h580349277509Pz5685