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: 1, 4, ['a', '9257', 'K', '3909', '1655']

SOLUTION: 3909K9257a

PROBLEM: 14, 24, ['7539', '1653', '1415', '4545', '1969', '2893', 'W', '6317', 'v', '9095', '6265', 'X', '4399', '245', 'f', '8721', 'A', 'b', '7885', '8541', '8251', 'L', 'G', '6781']

SOLUTION: 6781GL825185417885bA8721f245

PROBLEM: 6, 6, ['4211', 'p', '9101', '2133', '9549', '2493', 'H', '5277', 'O', 'r', '7829']

SOLUTION:
2493