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.

Q: 3, 4, ['2419', '643', '8177', '7291', '561', '6529', '4101', 'u', '6445']

A: 19277718
****
Q: 2, 5, ['l', 'E', '729', 'U', 'z', '9729', '3247']

A: zU927E
****
Q: 13, 15, ['R', 'O', 'q', '9359', 'Y', 'T', 't', '9895', '2791', 'H', '5061', '721', '7161', 'Y', 'S', '2051', 'K', 'n', '155', '247', 'Y', '7779', 'M', '4725', '9177', '1583', 'v', 'm']

A:
SY1617
****