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:
4, 4, ['8643', '8469', '9265', 'i', 'P', '3633', 'A', 'g', 'l']

Ex Output:
i


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

Ex Output:
Mku


Ex Input:
2, 4, ['993', '7787', 'r', '2345']

Ex Output:

2345r7787