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:
5, 6, ['9891', '9721', 'q', 'u', '8721', 'l', 'm', 'p']

Ex Output:
l8721


Ex Input:
3, 14, ['k', '2439', '4873', 'L', '75', '359', '5947', '3925', 'r', '9259', '3053', '5819', 'G', '285', 'Y', 's', '251', 'e']

Ex Output:
285G581930539259r3925594735975L4873


Ex Input:
15, 22, ['4727', 'L', '7375', 'a', 'w', '9319', 'A', '3251', 'V', '1951', '965', 'o', 'N', '9423', 'T', '629', '3079', 'j', '1749', '7679', '4749', 'l', 'N', 'p', 'q', 'w', 'D', 'j', '9921']

Ex Output:

l474976791749j3079629T