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, ['v', 'g', '5867', '9693', 'T', 'd', 'K', 'x']

Output: dT


Input: Consider Input: 1, 4, ['I', '5919', 'J', '6387']

Output: 7836J9195I


Input: Consider Input: 6, 9, ['7773', '5921', 'z', '1913', 'W', 'P', '5009', 'v', '3549']


Output: 9453v9005P