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.

2, 2, ['799', '3533', '7841']
3353

6, 14, ['505', 's', '3619', 's', '2871', '6403', 'b', 'M', 'Q', '9645', '9425', 'V', '873', 'l', '2917', 'Q', '9465', 'z', '1513', 'S', 'e', '9733', '7669', 'B']
l378V52495469QMb3046

10, 25, ['o', 'W', 'b', '6525', 'I', '1909', '5407', 'z', 'V', 'q', 'D', 'B', '6009', '727', '8381', 'K', 'I', 'E', '7159', '2649', '5713', 'a', '75', 'A', '2355', '9761', 'C']

5532A57a317594629517EIK18387279006BDq