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.

10, 20, ['9695', 'I', '5457', 'M', 'V', '7993', 'B', 'b', 'u', 'H', '7805', '3431', '6839', '3687', '8261', 'U', 'a', 'W', '9437', 'q', 'l']
q9437WaU82613687683934317805H

1, 5, ['h', 'L', '1237', 'N', 'a']
aN1237Lh

14, 14, ['O', 'v', '2481', 'o', '5307', 'd', '4605', '9457', 'o', 'i', '4283', '203', 'S', '1879', 'f', '5777', 'p', 'r', '5703', '2611', 'B', '7855', 'W', '585', '5603', '9461']

1879