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: 18, 19, ['5001', 'e', '2989', 'U', '7865', '469', '3545', '3579', 'N', '8359', '3449', '3591', '6035', '1919', '2539', 's', '9597', 'b', 'd']

bd