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.

Ex Input:
6, 16, ['T', '7203', 'J', 'O', 'h', 'm', 'q', '3985', 'H', 'w', '2055', '9161', 'T', '8415', '95', 'c']

Ex Output:
c595148T16195502wH5893qm


Ex Input:
2, 3, ['T', '2161', '227']

Ex Output:
7221612


Ex Input:
10, 15, ['3885', '835', 'S', '443', '8207', '4863', '8105', 'e', '9695', 'A', 'q', '9699', 'N', 'N', '847', '6029', 'c', '8471', '8677', '3671', 'O', 'B', 'J']

Ex Output:

748NN9969qA