In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.

Example Input: 6, 9, ['6157', 'Z', 'f', 'N', 'Z', 'T', '7299', 'G', 'w', '3923', 'H', '3255']
Example Output: wG9927T

Example Input: 2, 6, ['6717', '6639', 'l', 'i', 'o', '1819']
Example Output: 9181oil9366

Example Input: 5, 17, ['p', '6281', 'F', '7215', 'e', '6799', '1889', '6153', 'I', '9541', 'I', 'H', 'h', '6831', 't', '9527', 'O', 'Q', '9695', 'z', 'd', 'B', '6765', '2771', '7527', 'g']
Example Output:
O7259t1386hHI1459I351698819976e