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, 15, ['d', 'P', 'D', '5601', '3115', 'O', 'h', '1521', '8467', '5275', '6455', '1579', 'w', 'f', '9647', 'z', 'i', '4137', '7581', '6173', 'V']

SOLUTION: 9647fw15796455527584671521hO31155601

PROBLEM: 5, 8, ['725', '7647', 't', '5381', 'I', 'U', '1107', 'z', '969', 'p', 'w', '3053', 's', 'N', 'R', '4651', '3381', '8699', 'F', '6013', 'P', 'e', '7855', '365', 'b']

SOLUTION: z1107UI

PROBLEM: 9, 18, ['g', 'v', 'G', 'w', '1403', '1157', 's', '9343', 'K', 'Q', 'R', '2607', 'd', 'D', 'x', 'l', '1523', '4221']

SOLUTION:
42211523lxDd2607RQK