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, 6, ['O', '3491', '2665', '3429', 'u', 'C', 'R', 'B', '1111', 'b', 'T', 'Z', '6831', 'V', 'C', 'b', '4451', 'R', 'r']
Example Output: Cu

Example Input: 1, 2, ['7359', '647', 'b', '6675']
Example Output: 6477359

Example Input: 13, 19, ['E', '9569', 'A', 'I', '8517', 'h', '1011', 'H', '9997', '5825', 'y', '7179', 'c', 'B', 'I', 'P', 'T', '6057', 'G']
Example Output:
G6057TPIBc