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.
6, 15, ['k', 'P', '9375', '5895', 'L', 'f', 'A', '8823', '4675', '2559', 'f', 'f', '5941', '5343', '2587', '881', 'S', '6393', '1871', '6613', '5241', '9945', 'Q', 'T', 'H', '1091']