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: 14, 20, ['7043', '8365', 'm', '8535', 'i', '9021', '6367', 'Q', '5707', 'r', 'D', 'H', 'e', 'g', '5847', '7645', 'f', 'R', 'u', '1699', '795', 'h', 'H', '489']

SOLUTION: 1699uRf76455847g

PROBLEM: 13, 19, ['I', 'e', 'D', '6689', '6047', '6839', '6523', 'e', '6939', '653', '5701', 'r', '7005', 'e', '7821', 'w', '6221', '3243', 'H', '1305', 'w', '3995', '1873', '6035', '5543', 'M', '8079', '6091', 'B']

SOLUTION: H32436221w7821e7005

PROBLEM: 19, 28, ['d', 'G', '2901', 'D', 'z', '7433', 'F', '8401', 'f', '5393', 'K', '7041', 'l', '3029', '8013', '1535', 'G', 'G', 'k', 'K', '2731', 'a', '955', 'D', '6419', '379', '1593', '4949', '267']

SOLUTION:
494915933796419D955a2731Kk