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.

6, 7, ['8123', 'G', '4941', 'Z', 'i', 'T', '3335']
5333T

2, 4, ['B', '5601', 'v', '7431', 'z']
1347v1065

4, 9, ['b', '2829', '3831', 'H', '1349', '497', '2587', '9011', 'x', '6323', '5505', 'I']

x110978527949431H