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, 18, ['2347', 'y', 'i', 'G', 'p', '821', 'l', 'K', '2571', '3897', 'I', 'X', 'o', 'w', 'F', 'h', 'o', 'k']

SOLUTION: kohFwoXI38972571Kl

PROBLEM: 8, 8, ['q', 'L', '1899', 'N', 'A', '3513', 'E', '9175', '7765', 'A', 'T', '6981', 'g', '7555', 'e', 'y', '2225', 'M', '5669', 'b', 'c', '6729', 'Q', 'm']

SOLUTION: 9175

PROBLEM: 4, 25, ['1661', 'd', '9567', '2629', '9487', 'V', '543', 'w', 'Z', 'q', 'z', 'H', 'u', '8981', 's', 'U', 'w', 'J', '7715', '8199', 'i', 'S', '1137', 'Z', 'J', 'w', '8569']

SOLUTION:
JZ1137Si81997715JwUs8981uHzqZw543V94872629