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:
3, 9, ['Y', '9075', '2327', '1643', '655', '935', 'a', 'j', 'm']

Ex Output:
mja53955634617232


Ex Input:
8, 13, ['O', '5581', 'r', 'H', 'f', 'y', 'A', 'g', '6023', 'G', 'G', 'm', '8767']

Ex Output:
7678mGG3206g


Ex Input:
5, 10, ['J', 'q', 'W', '445', '5759', 'S', 'R', '4023', 'm', 'j', 'u']

Ex Output:

jm3204RS9575