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:
4, 13, ['1283', 'G', 'U', 'F', '5549', 'n', '565', '2889', 'Z', 'V', '2511', 'g', '6311', 'd', 'Z', 'X', '4305', '5323', 'M', 'z', '5951', 'u', 'A', 'T', 'v', 'z', 'L']

Ex Output:
1136g1152VZ9882565n9455F


Ex Input:
19, 28, ['2809', '2943', '209', 'I', '4961', 'z', '6499', 'j', '8323', 'v', '6955', 'E', '2591', '5523', 'D', 'j', '3929', 'L', '501', 'Y', 'e', 'p', 'F', '1073', 'o', '3531', '9245', 'K']

Ex Output:
K54291353o3701FpeY105


Ex Input:
2, 3, ['X', 'j', '7029', 'V', '7001']

Ex Output:

9207j