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, 1, ['9543', 'z']

SOLUTION: 9543

PROBLEM: 4, 6, ['3425', 'Y', '2513', 'm', 'D', '173']

SOLUTION: 173Dm

PROBLEM: 2, 2, ['Q', 'L']

SOLUTION:
L

