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.

2, 3, ['T', '9003', '3731', '287', '7101', 'm', '2147', '6123', '6319']
13733009

2, 3, ['X', '8243', '1209']
90213428

5, 18, ['p', '1827', '2801', 'R', 'z', 'Q', 'T', 'G', 'x', '7817', '7297', '7919', '6763', '2801', 'h', '9383', 'i', 'E', 'w', '55']

Ei3839h10823676919779277187xGTQz