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: 4, 16, ['M', '1253', 'L', '1997', 'E', 'u', '4953', '1627', '4497', '1839', 'M', 's', '9821', '9159', '845', '6189', 'F', 'G', 'E', '2303', '503']

Output: 981654895191289sM9381794472613594uE7991


Input: Consider Input: 1, 12, ['2851', 'v', '8871', 'Z', '2227', 'm', 'z', 'B', 'v', '765', '1435', 'V', 'X', 'k', '5955', '2549']

Output: V5341567vBzm7222Z1788v1582


Input: Consider Input: 4, 9, ['8845', 'i', 'L', 'c', '1847', 'l', 'g', '4651', '1757', 'N', '2233', 'N', '6027', 'X', 'm', '6401', '9167', 'y', '795', 'N']


Output: 75711564gl7481c