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: 5, 20, ['5377', 'j', 'j', '1767', '2103', '9547', 'I', 'M', '4067', '2571', 'V', 'Z', 'O', '3421', 'V', 'v', '4919', 'X', '307', 'M', '1603']
Example Output: M307X4919vV3421OZV25714067MI95472103

Example Input: 11, 20, ['T', 'U', '8683', 'N', 'X', 'F', '1307', 'Y', '1347', '6855', 'Y', '2007', '8981', '1943', 'F', '5463', '9905', 'L', '3509', '5787', 'b']
Example Output: 57873509L99055463F194389812007Y

Example Input: 5, 12, ['7155', '7441', 'G', 'o', 'D', 'S', 'l', '7011', '8421', '965', 'p', '9339', 'K', 'Q', '5889', 'X', '6407', '3199', '6003', '3481', 'r']
Example Output:
9339p96584217011lSD