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.

Input: Consider Input: 3, 6, ['A', '6949', '2045', '119', '1373', '9613']

Output: 316937319115402


Input: Consider Input: 8, 13, ['O', '5581', 'r', 'H', 'f', 'y', 'A', 'g', '6023', 'G', 'G', 'm', '8767']

Output: 7678mGG3206g


Input: Consider Input: 9, 19, ['D', '4059', '2447', '1663', '2353', 'O', 'D', 'Y', '3693', '5719', '1793', '3067', 'c', '4779', 'd', '5925', '7355', 'G', '4459', '3099', 'b', 'U', '9187', 'M', '2457']


Output: 9544G55375295d9774c7603397191753963