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, 3, ['x', 'v', 'p', '4337', '635', '8927', 'B']

SOLUTION: p

PROBLEM: 14, 17, ['J', '8303', 'I', 'O', 'Y', 'U', '9225', '5315', '8891', '5195', '5805', '8577', 'n', '3621', 'k', '4049', 'k', 'y', '9591', '3465', '9829']

SOLUTION: k9404k1263

PROBLEM: 9, 9, ['c', '87', '2945', '8139', '7111', '8401', '9203', 'I', 't', 'f', 'D', 'D', 'k', '2775', '895', '187', '8111', '3655', '6725', 'L', '383', 'O', 'v', '3271', 'G', '8593', '7661', '7635']

SOLUTION:
t