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: 3, 11, ['5797', 'D', '289', 'D', '2703', '2975', 'o', 'd', '2433', 'c', 'P', 'B', '2247', '4535', '9153', 'J', '1141', '6809', '2473', 'o', 'h', '4577', 'p', 'D', '3801', '4679', 'B']

SOLUTION: Pc3342do57923072D982

PROBLEM: 2, 3, ['2661', 'T', '8855', 'I', 'f', 'P']

SOLUTION: 5588T

PROBLEM: 3, 8, ['d', 'y', '7857', '1815', 'W', '4063', '5967', '907', '953', 'A', 'C', 'K', '2519', 'U']

SOLUTION:
70976953604W51817587