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.
7, 27, ['Y', '1663', '2351', '7157', '21', 'E', '2199', '4739', '3157', 'i', 'k', '5631', '9611', 'T', '6593', 'b', '2941', 'T', '5289', '723', 'R', 'C', '6393', '6251', '5117', '9633', '9817', '9425']