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: 24, 24, ['x', 'F', '6051', 'J', 'v', 'f', '757', 'l', '5555', 'Z', 'C', 'T', 'j', 'T', '8321', '195', '8415', '6121', 'z', '3239', '2021', '9489', '6943', '6685', '4731']
Example Output: 6685

Example Input: 3, 5, ['m', 'U', '3235', 'B', '2015']
Example Output: 2015B3235

Example Input: 2, 4, ['4089', 'R', '9889', '9383']
Example Output:
93839889R