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.

Ex Input:
1, 10, ['X', '3687', 'p', '973', '7395', 'T', '9981', 'J', '261', 'V', '8571', 'I', '7911', 'F', 'K', 'J', 'T', 'F', '2249', '2975', 'D', '6279', '1529', '2957', 'y', '5285', 'X', 'v', '8115']

Ex Output:
V162J1899T5937379p7863X


Ex Input:
2, 11, ['N', '5989', '9485', '1955', '4841', '8403', 'f', 'M', '3261', '9581', '8083', '5201', '6391', 'h', 'C', 'O', '6361', '4033', '9121', '9825']

Ex Output:
380818591623Mf30481484559158499895


Ex Input:
3, 5, ['7033', 'X', '2047', 'h', 'U', 'b', 'o', 'a']

Ex Output:

Uh7402