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:
3, 5, ['m', 'U', '3235', 'B', '2015']

Ex Output:
2015B3235


Ex Input:
6, 8, ['6277', 'X', '3141', '2291', 't', '7429', '9399', '597', 'T', '8629']

Ex Output:
59793997429


Ex Input:
1, 8, ['q', 'y', '9367', '375', '4269', '1223', '6141', '3805', '6071', '8391', 'E', '4973', '9025', 'k', '25', 'I', '1355', 'l', '4733', '1949']

Ex Output:

38056141122342693759367yq