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: 7, 10, ['X', 'Z', '1899', '7391', 'a', 'B', '7635', '8357', 'Y', 'm', 'X', 'q', '8069', 'w', 'c', '837', 'e', 'i', 'Q']

mY83577635