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:
4, 6, ['e', '4767', '8447', 'e', 'P', '7453', 'i', 'I', 'z', '415']

Ex Output:
7453Pe


Ex Input:
2, 4, ['N', 'I', 'J', '7741', 'l']

Ex Output:
7741JI


Ex Input:
1, 4, ['2773', 'w', '9029', 'l', 'k']

Ex Output:

l9029w2773