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: 6, 10, ['W', '4485', 'x', '4885', '779', '5681', '5085', '3523', '2869', '3817', 'D', 'J', '5781', '4703', '8409', '7397', '1743', 'n', 'O', 'O', 'I', '2341', 'd']

SOLUTION: 38172869352350855681

PROBLEM: 7, 16, ['G', '9909', '2917', 'A', 'W', 'B', '7565', 'c', 'Q', 'H', 'k', '3181', 'V', 'o', '9971', '8241', 'm', 'x', 'Q', 'n', '6843', 'P', '1077', '5241', '3977', 'd']

SOLUTION:
82419971oV3181kHQc7565