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:
1, 2, ['3909', '5863', '707']

Ex Output:
36859093


Ex Input:
15, 16, ['1107', '1863', 'L', '6929', '9633', '9399', '4479', 'V', 'o', 'x', '1065', '7955', 'i', '7413', '6237', 'S', '1461', '8481', '7143', 's', 'U', 'd']

Ex Output:
S7326


Ex Input:
14, 24, ['117', 'U', '5445', 'W', 'i', '7241', '8249', '8069', 'H', '8487', '3349', 'p', 'D', 'O', '7213', 'S', '6925', 'N', '479', '1413', '8197', '4439', '4617', '3005']

Ex Output:

50037164934479183141974N5296S3127O