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: 9, 13, ['t', 'z', '3897', 'T', '7683', '8189', 'D', 'p', 'W', 'd', 'p', '315', 'P', '8037', '9411', 'q', '4931', 'U', 'e', '311', 'V', 'L', '6427', '6249', '8303', 'k', 'N', 'T']

SOLUTION: P315pdW

PROBLEM: 3, 4, ['D', '7459', 'y', 'B', '1671', 'x', 'Y']

SOLUTION: By

PROBLEM: 6, 18, ['y', 'I', '4135', '6197', '8567', '7697', '4735', '2307', '4789', 'h', 'c', '6219', '4021', '3919', 'Y', 'e', 'H', 'm', '7525', '7803', 'p', '6957', 'J', '669', '663', 'B', '693', '4753']

SOLUTION:
mHeY391940216219ch4789230747357697