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: 7, 7, ['5203', 'C', '929', 'r', '6435', 'p', '303']

SOLUTION: 303

PROBLEM: 2, 4, ['7887', 'x', '3749', 'N', 'U', '2971']

SOLUTION: N3749x

PROBLEM: 5, 16, ['h', '8271', '1853', 'O', 'l', 'b', '4177', 'W', 'q', '2303', '2589', '153', '8331', '1383', '4373', 'K']

SOLUTION:
K43731383833115325892303qW4177bl