Definition: 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.
Input: 8, 12, ['N', 'A', '6987', '8827', '1093', 'v', 'o', '6021', '3919', 'q', 'a', 'l', 'i', '2065', '7287', 'M', '6915', '1587', '2009']

laq39196021