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: 5, 6, ['7565', '6525', '7421', 'u', '303', '1815', '273', '6725', 'i']

Output: 5181303


Input: Consider Input: 2, 7, ['9969', 'u', '9811', 't', 'z', '8347', 'i', 'O', '5897']

Output: i7438zt1189u


Input: Consider Input: 4, 13, ['9249', 'A', 'A', 'Z', 'L', 'K', '6459', 'P', 'Z', 'K', 'U', 'E', 'T']


Output: TEUKZP9546KLZ