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:
10, 10, ['f', '6369', 'B', 'p', 'T', '1169', '7861', 'I', 'G', '5077']

Ex Output:
5077


Ex Input:
3, 4, ['3979', 'L', 'x', '2961', '5933', 'q', 'y', '6509', '3047', '3919', '2015', '6887', 'u', 'F', '8617', '3793', 's', 'x', '2453', '5763', '2399', '6635', '8039', 'R', '5495', '2175', '8067']

Ex Output:
2961x


Ex Input:
4, 27, ['i', 'P', '1703', '9687', '4313', '6473', 'V', 'S', '8827', 'd', 'W', '1285', '6253', 'q', '925', 'g', '5029', 'q', 'e', '3539', 'V', 'j', '1747', 'm', 'k', '709', '7601']

Ex Output:

7601709km1747jV3539eq5029g925q62531285Wd8827SV647343139687