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: 4, 5, ['5837', 'M', 'H', '4703', 'K', 'k', 'P', 'f', '2471', '9617', '453', '9105', 'w']

SOLUTION: K4703

PROBLEM: 10, 12, ['233', '5565', '3017', 'r', 'N', '5143', 'm', '349', 'x', '653', 'j', 'K']

SOLUTION: Kj653

PROBLEM: 5, 7, ['8771', 'U', '3029', '8195', '7423', '8579', '2677']

SOLUTION:
267785797423