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:
7, 18, ['s', 'a', 'q', '6573', '7757', '7229', '9149', '7563', '2171', 'L', 'F', 'S', '4337', '3071', 'Q', 'A', '6987', '2529', '2489', 'y', '359', '3065', 'h']

Ex Output:
92527896AQ17037334SFL171236579419


Ex Input:
5, 8, ['9889', 'z', '895', 'W', 'j', 'K', '7047', '9723', '6281']

Ex Output:
32797407Kj


Ex Input:
5, 26, ['105', '1325', 'o', '5983', 'r', '8701', 'L', '8927', '6663', '2545', 'l', '6251', 'L', '863', '1671', 'o', '1671', 't', '3385', 'D', 'Y', 'N', '2547', '7687', '8173', '1355', '887', '3731', 'O', '8061']

Ex Output:

5531371878677452NYD5833t1761o1761368L1526l545236667298L1078r