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, ['z', '3345', 'l', '2657', 'J', '4313', 'K', '5307', '9087']
5433

1, 2, ['L', '7723']
3277L

2, 3, ['5043', '9523', '7293']

39273259