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, 7, ['a', '3469', '4831', 'm', 'u', 'b', 'E', '3319', '363', '2181', '2269']

SOLUTION: Ebum48313469a

PROBLEM: 4, 7, ['H', 'I', 'B', '6833', 'a', '7477', '8817', 'd', '4545', '779', 'F', '3265', '1819', '9317', '879']

SOLUTION: 88177477a6833

PROBLEM: 9, 15, ['6675', '9765', 'q', '3337', 'u', 'M', 'g', '907', '5407', '8361', 'h', '4695', 't', 'l', '6991', '8199', '5441', 'u', 'W', 'z', 'v', '1333', 'm', 'y', 'K', 'W', '5453', '1323', '8887']

SOLUTION:
6991lt4695h83615407