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, 14, ['k', '2439', '4873', 'L', '75', '359', '5947', '3925', 'r', '9259', '3053', '5819', 'G', '285', 'Y', 's', '251', 'e']

SOLUTION: 285G581930539259r3925594735975L4873

PROBLEM: 8, 16, ['G', '615', 'N', '8597', 'f', '1837', 'R', '6489', '6643', '7951', 'p', 'q', 'z', '2831', '1655', 'C', 'K', 'H', '2117', '5135', 'U', 'y', 'e', 'i', 'r', 'j', '4779', '5225']

SOLUTION: C16552831zqp795166436489

PROBLEM: 6, 7, ['1555', '441', 'H', '2689', 'M', 'u', '2415']

SOLUTION:
2415u