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

SOLUTION: By

PROBLEM: 7, 12, ['5269', '8059', '6189', '5469', 'D', 'Q', 'C', '8547', 'I', '37', '5495', '6909', 'H', 'H', 'V', '7219', '6235', 'f']

SOLUTION: 6909549537I8547C

PROBLEM: 7, 7, ['i', 'U', '8633', 'q', 'C', 'x', 'G', 'd', '3665', 'e', '1227', '4395', '6537', 'V', 'l']

SOLUTION:
G