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: 5, 16, ['A', 'l', '7647', 'Q', 'I', '3801', 'A', 'x', 'm', 'n', 's', 'k', '5425', 'a', 'E', 'y', '2259', '1901']

yEa5425ksnmxA3801I