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: 1, 3, ['4181', '3741', 'Q']

SOLUTION: Q14731814

PROBLEM: 5, 13, ['217', '841', 'G', 'N', '5667', '9343', '8067', '7679', 'T', 'Z', 'G', '6499', 'n']

SOLUTION: n9946GZT9767760834397665

PROBLEM: 6, 8, ['F', '6153', '623', '7371', 'o', '2661', '39', '67', 'v', 'y', 'm', 'n', '1133', 'b', 'a', '4527', 'D', '9775', '9497', '3409', '7347', '4641', 'Q', '9231', 'Z', 'm', 'y', '6799']

SOLUTION:
76931662