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: 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: 5, 9, ['V', 'G', '4689', 'I', '6573', 'v', '4999', 'V', 'H', 'U', '2383', '489', '8517', 'K', 'A']

A: HV9994v3756
****
Q: 18, 21, ['T', '7223', '1291', 'c', '6335', '1677', '1351', 'G', '4537', 'L', '3823', 'e', '4055', 'E', 'W', '7469', '8149', '5183', '579', 'S', 'j', 'h', '1777', '7213', 'K', '3733', '6461', 'v', 'J', '2245']

A:
jS9753815
****