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, 8, ['B', 'w', '4119', '8783', 'B', '3767', '6269', '8115']

Ex Output:
811562693767B87834119


Ex Input:
10, 18, ['p', '5729', '2319', 'D', 'u', 'C', '5549', 'l', '6565', '2055', 'J', '6501', '9961', 'q', 'T', 'b', 'c', 't', '3407', 'M', '3705', 'h', '4409', '8927', 'J', '3701']

Ex Output:
tcbTq99616501J2055


Ex Input:
2, 15, ['3997', 's', 't', 'U', '2027', 'Y', 's', '4561', '2905', 'Z', '2735', '7467', 'I', 'y', '389', 'x']

Ex Output:

389yI74672735Z29054561sY2027Uts