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: 2, 10, ['R', 'g', '8909', '6051', '4011', 'T', 'P', '5051', 'u', '6287', '1069', '9051', 'K', 'G', 'o', 'b', '87', 'I', '6941', 'p', '6797', '8081', '6393', '4847', 'q', '8609', '739', 'P', '8443', 'C']
Example Output: 7826u1505PT110415069098g

Example Input: 1, 12, ['6893', 'o', '2661', 'T', 'w', 'u', 'k', '7727', 'X', '9861', '9125', 'o', 'x', '9109']
Example Output: o52191689X7277kuwT1662o3986

Example Input: 5, 5, ['E', 'l', '7203', '5025', '4499', '2223', 'c', 'a', 'T', 'j', '5013', '7789', 'B', 'V', 'v', 'i', 'T', '7629', '2785', 'n', 'I', 'M', 'C', 'D', 'M', 'h', '389', 'p']
Example Output:
9944