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.

Ex Input:
13, 23, ['4763', '2429', 'l', '3433', 'W', '4653', 'n', '3171', '555', 'N', '6615', 'G', 'E', 's', 'l', '5877', '7441', '9415', 'w', '5903', '8227', '89', '493', '7633']

Ex Output:
4938982275903w941574415877lsE


Ex Input:
18, 22, ['2445', 'L', 'x', 'i', '9929', '3105', 'v', '445', 'O', '353', 'j', '9877', 'D', 'U', '885', '9485', 'V', '8219', '2963', '685', '1659', 'U']

Ex Output:
U165968529638219


Ex Input:
4, 7, ['W', '6813', 'j', '7811', 'y', '6085', '6825', 'V', '9741', 'o']

Ex Output:

68256085y7811