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.
12, 18, ['H', 'T', 'h', 'r', '5759', 'V', '9471', 'S', '261', '7167', 'q', '3465', '4329', '4809', '1775', '9359', '6811', 'U', '993', '4123', '7725', 'X', 'y', 'D', 'Q', 'v', '2913', 'o']