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: 20, 26, ['9693', 'i', '8753', 'f', '9131', 'v', '2831', '1541', 's', '8307', '373', 's', 'z', '4929', 'I', '741', 'K', '7767', '2557', 'f', '887', 'g', '779', 'k', '5967', '4947', '2373', '7251', '8841', '3277']

Output: 74947695k977g788f


Input: Consider Input: 7, 8, ['U', 't', '8289', '9391', '1751', 'Y', '9319', 'A', 'Q', 'd', 'B', '2521', '2455']

Output: A9139


Input: Consider Input: 27, 28, ['2473', '7889', 'X', 't', 'D', '1539', '8509', 'k', 'K', '7333', '2299', '6301', '5213', '6393', 'n', '6507', 'Z', 'p', '797', 'Q', '4041', '1967', 'W', '277', 'J', 'e', 'I', '6069']


Output: 9606I