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:
1, 8, ['5377', 'N', 'V', 'a', '7059', '3479', '1621', 'B', 'd']

Ex Output:
B162134797059aVN5377


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:
3, 4, ['k', 'R', 'a', 'e', 'E', 'j', '9897', '4649', 'I', '4573', '3611', 'S', '3709', '4063', '1023', '7171', '1827', 'l', 's', '1329', '7709', 'y', 'I', 'P', '1491']

Ex Output:

ea