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.

Q: 1, 12, ['f', '8665', '6205', 'L', 'y', 'P', '9351', 'k', '1387', '657', 's', 'k']

A: ks7567831k1539PyL50265668f
****
Q: 2, 11, ['N', '5989', '9485', '1955', '4841', '8403', 'f', 'M', '3261', '9581', '8083', '5201', '6391', 'h', 'C', 'O', '6361', '4033', '9121', '9825']

A: 380818591623Mf30481484559158499895
****
Q: 12, 13, ['9483', '4585', 'K', 'A', 'v', 'O', '55', '8005', 'p', '3231', 'f', 'B', 'g', '7033', 'N', 'v', '189', 'Y', '9967', '8917', '7985']

A:
gB
****