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:
15, 29, ['w', '5845', '5777', 'V', '7279', '3285', '4985', 'v', 'A', '2911', 'J', 'w', 'f', 'Z', '5657', '9001', '1447', '4845', '2561', '7819', '33', 'F', 'y', '3849', 'S', '8987', 'U', '7975', '1775', 'x']

Ex Output:
17757975U8987S3849yF33781925614845144790015657


Ex Input:
8, 8, ['V', '2803', '7079', 'W', '1265', '7865', 's', 'F', 'H', '4231', '1777', '3189']

Ex Output:
F


Ex Input:
4, 15, ['6909', '4265', '7129', '4661', '3899', 'P', '1639', '1595', '659', '3253', '2971', 'E', 'T', 'A', 'I', '4537', '1427', 'K', 'Z', '8003', '8827']

Ex Output:

IATE2971325365915951639P38994661