TASK DEFINITION: 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.
PROBLEM: 1, 2, ['1437', 'u']

SOLUTION: u1437

PROBLEM: 13, 20, ['z', '6473', '883', 'F', 't', '5379', '5471', '7621', 'q', '7731', '3525', '1077', '9929', '725', 'C', 'V', 'x', 'L', '3057', 'G', 'd', 'u', '4191', '6785', '1359', '5165']

SOLUTION: G3057LxVC7259929

PROBLEM: 11, 18, ['747', '7079', 'P', '6779', '9113', '8649', '2341', '2023', '7421', '5241', '3591', '2685', 's', '8247', 'C', '4435', '4795', 'x', '8333', '7845', '5071', 'r', '2081', '4629', '1551', '2253']

SOLUTION:
x47954435C8247s26853591