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:
14, 15, ['b', '863', '5093', '7589', '6635', 'X', '863', '8197', '3571', 'u', 'J', '1331', 'M', 'z', '9965', '3989', '2677', 'm']

Ex Output:
9965z


Ex Input:
1, 3, ['u', 'k', 'M', '7101', 'U', 'f', 'L', '653', '2863']

Ex Output:
Mku


Ex Input:
2, 3, ['H', 'w', '8613', 'b', 'z', '8097', 'w', '5601', 'C', '5309', 'C']

Ex Output:

8613w