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, 3, ['7635', 'c', 'h', 'D', 'K', '7235', 'e']

A: hc5367
****
Q: 2, 3, ['U', 'U', '5201', '4581', '2943', 'B', 'j']

A: 1025U
****
Q: 16, 22, ['d', 'K', '2775', '761', 'O', '4923', 'N', 'u', '6101', '1309', '401', '8159', 'M', 'R', 'J', '8975', 'o', '6667', '7681', 'r', 'Z', '1839']

A:
9381Zr18677666o5798
****