TASK DEFINITION: In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.
PROBLEM: 2, 27, ['d', 'L', 'o', '3417', 'J', '2183', '8813', '2469', '3583', '8225', 'o', 'q', 'N', '3215', 'V', 'f', '7371', 'F', '6797', 'R', 'X', '2245', 'P', 'v', '4347', 'k', 'K', 'O']

SOLUTION: Kk7434vP5422XR7976F1737fV5123Nqo52283853964231883812J7143oL

PROBLEM: 8, 12, ['K', 'x', 'a', 'A', '6203', '117', '1007', '6063', '569', '9809', '9097', 'w', '3939', 'l', 'V']

SOLUTION: w790990899653606

PROBLEM: 1, 24, ['X', '7259', '485', 'm', 'F', 'h', '849', 'q', '3503', '4131', 'I', '9637', '9203', '7631', '4219', 't', 'y', 'i', '8773', '5565', 'n', 'g', 'l', '4057', 'M']

SOLUTION:
7504lgn56553778iyt9124136730297369I13143053q948hFm5849527X