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, 2, ['1467', 'm']

A: m
****
Q: 3, 3, ['2599', '5593', 'b', '7795']

A:
b
****