In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.

Ex Input:
8, 18, ['O', 'a', 'w', 'f', 'E', 'u', '1205', '3349', '9805', 'M', 'Z', '5239', 'u', '203', '9193', '8629', '3209', 'v', 'b', '9661', '1039', '251', '1863', 'b']

Ex Output:
v320986299193203u5239ZM98053349


Ex Input:
22, 22, ['D', 'U', 'O', '2609', '7785', 'F', 'v', 'g', '5451', 'W', 'D', 'n', 'R', '1483', 'o', 't', '6741', 's', 'u', '9611', 'Y', '1261', '8023']

Ex Output:
1261


Ex Input:
12, 25, ['K', 's', '855', 'x', 'K', '6783', '3553', 'J', '7491', '6687', '7637', '4101', 'L', '6669', '4317', '6925', '6149', 'U', '2647', 'D', 'd', '1825', 'M', 'A', '9001', 'd', 'E']

Ex Output:

9001AM1825dD2647U6149692543176669L4101