Detailed Instructions: 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, 18, ['G', '8555', '1525', '1893', '9367', '5747', '4885', '6841', '795', 'H', '977', '4583', 'b', 'P', 'T', 'H', 'L', 'u', 'r', '4339']
A:
uLHTPb3854779H5971486588474757639398152515558G