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.
7, 19, ['T', '2863', '5235', '2953', '4589', 'R', 'B', '3149', '91', '9395', '4955', 'e', '4943', 'C', '3079', '2923', 'X', '7583', '577', 'z', '4475', 'H', '3983', 'X', 'h', 'u', 'c', '8967']