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:
9, 19, ['5843', 'b', '161', 'Z', 'h', '2323', '25', 'S', 'Z', 'A', 'l', 'R', 'O', '4543', 'd', 'J', '1667', 'I', 'N', 'K', 'T', '2767', '4409', 'B']

Ex Output:
NI7661Jd3454ORlAZ


Ex Input:
8, 9, ['g', '9445', '8591', 'N', '4807', '9431', 'm', 'z', '3553', '7577', 'X', '3223']

Ex Output:
3553z


Ex Input:
21, 28, ['A', 'C', 'r', '4727', 'Q', '1151', '1239', '759', 'f', '917', '5585', 'u', '9037', 'Z', 'O', '4291', 'J', '3411', '9927', '1075', 'D', '6413', '8135', 'w', '3167', 'm', '2569', 'y']

Ex Output:

y9652m7613w53183146D