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: 11, 18, ['x', 'W', 'v', 'K', '6841', 'a', 'C', 'E', '2573', '9523', '8457', 'd', '3655', 'T', 'u', '9383', '6359', 'f', '1017', 'a', '4735', '345']

f63599383uT3655d8457