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, 9, ['7671', '575', 'l', '989', '7015', 'X', 'x', '3543', '3771', '905', '3815', 's']

SOLUTION: 17733453xX5107989l

PROBLEM: 5, 9, ['V', 'G', '4689', 'I', '6573', 'v', '4999', 'V', 'H', 'U', '2383', '489', '8517', 'K', 'A']

SOLUTION: HV9994v3756

PROBLEM: 7, 24, ['e', '1367', 'g', '6865', '5629', 'D', '8883', '5431', '6825', '3143', 'C', '2523', 'Z', '8211', '9507', 'l', '3591', 'j', '3803', 'O', 'h', 'e', '6901', '7271', 'm', 'C']

SOLUTION:
17271096ehO3083j1953l70591128Z3252C3413528613453888