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.

Q: 3, 4, ['Z', 'P', '7969', '7221', 'a', '5397']

A: 72217969
****
Q: 4, 5, ['O', '6353', 'n', '3645', 'R', 'd']

A: R3645
****
Q: 7, 7, ['R', 'G', '5357', 'T', 'd', '5567', 'M', '43', 'L', '2895', 'S', '2993', 'B', 'Z', 't', 'b', 'c', '7729', '8079']

A:
M
****
