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.

1, 3, ['o', 'o', '4511', '9203', '6071', 'Q', '5337']
1154oo

12, 12, ['c', 'a', 'G', 't', '753', 'x', 'I', '4479', 'i', 'y', 'J', 'w']
w

7, 14, ['7003', 'A', 'I', 'g', '3821', 'a', '6433', '8919', 'O', 'H', 'v', '7781', '4565', '8789', '8999', '6429', '2627', 'y', '1369', '4781', 'n', 'd', 'C', '5567', 'i', '8875', '4417', '4379']

987856541877vHO91983346