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.

Ex Input:
1, 3, ['4181', '3741', 'Q']

Ex Output:
Q14731814


Ex Input:
12, 13, ['w', '2825', '7553', '5565', '4973', '1763', '4755', 'c', 'y', '6241', '7527', '7701', '865']

Ex Output:
5681077


Ex Input:
8, 25, ['C', 'W', 'c', 'r', '6753', '3541', '6609', '3107', '6867', '6709', 'z', 'F', 'G', 'j', 'd', '4795', 'y', '7765', '8365', '2829', '3193', 'S', '3947', '17', 'p', '6655', '3183', '1617']

Ex Output:

p717493S3913928256385677y5974djGFz907676867013