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, 7, ['P', 'h', '1443', 'b', 'K', '2641', '3831']

A: 13831462Kb3441hP
****
Q: 1, 6, ['H', '103', '7091', 'V', 'T', 'F']

A: FTV1907301H
****
Q: 1, 4, ['2339', '57', 's', '8283', '6401', '3261', 'e', '4105', '3501']

A:
3828s759332
****