Definition: In this task, you are given inputs i,j, and A, where i and j are integers and A is a list. You need to concatenate all elements of A from the ith element to the jth element, and print the resultant 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.
Input: 5, 16, ['6141', 'J', 'N', '1413', '6945', 'r', 'P', '7373', '2521', '6869', '8541', '8593', 'l', '2699', '3615', '7523', '5003', '5321', '6409']

6945rP73732521686985418593l269936157523