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:
8, 9, ['s', 'X', '6737', 'M', 'm', 'N', 'a', 'Q', 't']

Ex Output:
tQ


Ex Input:
5, 5, ['8095', 'D', '9477', '9307', '9355', 'U', 'y', '5197', '2691', '3061']

Ex Output:
5539


Ex Input:
2, 9, ['r', 'h', 'F', 'O', 'd', 'O', 's', 'E', 'C', 'N', '1141', '8225', '2483', 'T', 'c', 'z', '7753', 'C', 'z', 'W', 'L', 'l', '2811', 'Q', '8779', 'O', '5925']

Ex Output:

CEsOdOFh