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.
5, 22, ['k', 'b', 'A', '5139', 'f', 'e', '4147', 'l', '5205', 'g', '2437', '8399', 'G', '4305', 'B', '8685', 'P', 'k', '9497', '5823', '9753', '3959', 'n', 'w', 'W', '2777', 'u', 'r', '7475', 'O']