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.

Input: Consider Input: 2, 6, ['1467', 'm', '9771', '6533', 'm', 'x', 'c', 'd', '3139']

Output: xm33561779m


Input: Consider Input: 2, 9, ['3441', 'a', 'o', 'B', 'e', 'u', 'B', 'Z', '1287', '323', '5849', 'F', '7917', '1023', '6323', 'A', 'v', '491', '6123', '5949', '1409', 'I', '6889']

Output: 7821ZBueBoa


Input: Consider Input: 8, 10, ['2699', '907', '4197', 'I', '9291', 'k', 'h', 'z', 'D', '4289']


Output: 9824Dz