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: 3, 5, ['q', 'G', '9871', '3427', 'Q', '1993', 'H']

SOLUTION: Q34279871

PROBLEM: 12, 16, ['u', '551', 'L', 'g', 'd', '2453', 'J', 'f', '8211', 'L', '241', 'l', 'G', 'F', '9043', 'f', '3977', 'P', '4371', '7687', 'A', '8181', '5251', 't', '6837']

SOLUTION: f9043FGl

PROBLEM: 10, 11, ['7771', '1033', '4707', 's', '8975', 'r', 'k', 'k', 'c', '5899', 'c', 'e', 'g', '2933', '2243']

SOLUTION:
c5899