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:
21, 27, ['4191', 'x', 'G', 'h', '69', 'b', '1105', 'h', '69', 'F', '1871', 'B', '3329', 'w', '7623', '2829', 'T', 'R', 'O', '2811', 'k', 'E', '7445', 'Z', 'J', '7441', 'M']

Ex Output:
M7441JZ7445Ek


Ex Input:
7, 8, ['l', 'D', '9033', '4155', '9215', '4615', '5411', 'x', '6533', 'z', 'p', 'm', '6559', '6803', 'p', 'm', '4681', 'b', '6531', 's', '8711', '1385', 'A', 'U', 'b']

Ex Output:
x5411


Ex Input:
1, 15, ['157', 'D', '8321', 'g', 't', '7339', 'y', '1813', '3049', 'h', '4047', 'S', 'V', 'T', '5295', 'h', '2861']

Ex Output:

5295TVS4047h30491813y7339tg8321D157