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:
3, 7, ['169', '1947', 'i', 'w', '8871', '9759', '5389', '3353', 'N', 'v', '665', 'R', 'q', '2323', 'd', 'N', '4211', 'A', 'A', '9571', '1129', 'W']

Ex Output:
538997598871wi


Ex Input:
7, 7, ['z', '2235', 'B', 'E', 'u', 't', 'p', 'h']

Ex Output:
p


Ex Input:
2, 8, ['417', '2921', '3461', '8053', '6677', '903', '605', 'X', '2397', 's', '2111', 'h', '6581']

Ex Output:

X6059036677805334612921