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: 2, 2, ['2475', '621']
Example Output: 621

Example Input: 1, 12, ['6225', 'S', 'E', '3433', 'E', '2617', 'k', 'k', '3927', 'V', 'R', '9569']
Example Output: 9569RV3927kk2617E3433ES6225

Example Input: 1, 2, ['3077', 'p']
Example Output:
p3077