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: 9, 16, ['I', 'j', 'I', 'W', 'f', '5511', '1989', 'K', '423', '593', '6283', '2699', '8375', '8757', '9561', 'o', '3371', '6349', 'N', '4835']

Output: o16597578573899623826395324


Input: Consider Input: 7, 8, ['9589', 'N', 'w', '429', '5545', '5047', '4133', 'p', 'a', '3793']

Output: p3314


Input: Consider Input: 1, 3, ['O', 'B', 'W', 'n', '825', '345', '7573', 'n', 'Y', '2879']


Output: WBO