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:
6, 15, ['7969', 'z', '7061', 'J', 'T', '7917', '7225', '7907', '8333', 'U', 'w', 'Y', '4729', '2461', 'X', 'k']

Ex Output:
X24614729YwU8333790772257917


Ex Input:
6, 27, ['b', '8159', 'v', 'S', 'a', '633', '4921', 'w', '9561', '7587', '5735', 'W', '7737', '6355', 'A', 'b', '3795', '5335', '5231', '6815', 'E', '1777', '9203', '5295', '2033', 'm', 'L', 'k', 'h', 'K']

Ex Output:
Lm2033529592031777E6815523153353795bA63557737W573575879561w4921633


Ex Input:
8, 9, ['o', 'i', '6659', 'N', 'q', '6635', 'Q', 'b', 'b', 'g', '5453', '6965', 'u', 'y', '7743', 'z', '3091', '5465', '3069']

Ex Output:

bb