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: 1, 2, ['5111', 'U', '441', '8381']

A: U1115
****
Q: 30, 30, ['t', 'W', 'P', '7193', '913', 'j', 'Y', '9535', '7771', 'R', '9275', '7115', '3433', '5279', 'T', '8899', '9497', 'U', '3461', '1753', 'k', 'T', '7899', '6963', '9271', '9173', '3357', '3521', '7397', 'r']

A: r
****
Q: 16, 23, ['8677', '5311', '9815', 'v', 'x', 'q', 'F', '5221', '7309', '5201', '6021', 'w', 'e', 'q', '7021', '8889', '4377', 'w', '2731', '5969', 'J', '1001', '637', 'r', 'b', '409', 'l', '391']

A:
7361001J96951372w77349888
****