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.

[EX Q]: 5, 9, ['4175', '3747', 'b', 'u', 'V', 'R', '2345', '3543', 'c', '71', '2477', 'X', '7045', '9019', '5773', '2277', '5989', '331', 'I', '5997', 'J', '5291', 'm', 'r', 'p', '2609', '7261']
[EX A]: c34535432RV

[EX Q]: 4, 9, ['9213', '2865', '1347', 'Y', 'A', '6261', 'E', 'w', 'r', 'B', 'j', '9157', 'r', '485', '8951']
[EX A]: rwE1626AY

[EX Q]: 1, 7, ['5977', '9117', 'Z', 'b', 'r', 'K', '4977', 'l', '1691', '2905', '4989', 'o', '9373', 'o', 'N', '1699', '7263', '1907', '5785', '4021']
[EX A]:
7794KrbZ71197795