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:
1, 2, ['5275', '671', '4105']

Ex Output:
6715275


Ex Input:
3, 5, ['9801', '6309', '4085', 'U', 'B']

Ex Output:
BU4085


Ex Input:
7, 13, ['7285', '6131', 'g', '3691', 'Y', '695', '6773', 'f', 'X', '7301', '7589', 'w', 'Z', '2041', '5393', 'j', 'O', 'r', 's', 'd', 'S', '3003', 'J', 's', 'l', '9847', 'F']

Ex Output:

Zw75897301Xf6773