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

Ex Output:
7741JI


Ex Input:
5, 23, ['s', 'i', '7369', '491', '5373', '6325', '9249', '7479', '7917', 'A', 'x', '4733', 'P', 'p', '315', '5557', 'm', 'W', '8883', '2559', '6233', 'l', 'Z', '8435', 'X', 'X']

Ex Output:
Zl623325598883Wm5557315pP4733xA79177479924963255373


Ex Input:
5, 16, ['A', 'C', '8663', '9787', 'u', '1147', '8259', '7089', 'y', 'n', 'A', 'S', '3479', '833', 'P', '7941', 'n', '6635', '2733', 'l']

Ex Output:

7941P8333479SAny708982591147u