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]: 2, 3, ['i', '7465', '1315']
[EX A]: 51315647

[EX Q]: 1, 9, ['g', '3007', '4827', '6665', '711', '6997', '137', 'X', '7383', 'q', 'v', 'K', '267', '3691', 'G', '7925', '8327', 'l']
[EX A]: 3837X7317996117566672847003g

[EX Q]: 5, 10, ['B', '1287', 'r', '9689', '5539', '2301', 'S', '1737', 'V', '8201', 'p', '1139', 'w', '5991', 'B']
[EX A]:
1028V7371S10329355