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, 14, ['m', '2915', 'w', '8275', '1735', '6885', '1655', 'P', 'e', '2635', '6077', '5185', '9535', '5225', 'h', 'c', '8167', 'q', '5261', 'T', 'Z', '6965', '5635', '7761', 'H', 'x', '4057', '959']