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.
--------
Question: 4, 9, ['d', '1057', '5737', '6925', '6365', 'y', 'w', '6535', 'P', 'F']

Answer: P5356wy56365296


Question: 12, 29, ['4267', '7621', 'e', 'd', '2685', '3417', 'V', 'E', '3849', '6875', '1093', '9451', '3257', '6313', 'K', 'j', '3551', 'l', 'J', 't', 'V', '7965', '307', 'A', '3733', 'Y', '8649', '8475', 'X']

Answer: X57489468Y3373A7035697VtJl1553jK313675231549


Question: 8, 20, ['5699', '1319', 'C', '3947', 'l', 'l', 'u', '3121', 'Y', '9993', 'e', '3823', 'B', '3541', '6747', 'P', 'l', 't', '3051', 'Y', '1865', '9565', '8391', 'T', '8419', 'T', 'J', '1987']

Answer:
Y1503tlP74761453B3283e3999Y1213