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, 18, ['y', '9359', 'u', 'l', 'W', '1447', 'Q', '5385', '4061', 'D', 'u', '1837', 'S', '3301', 'b', '4065', '8411', 'U', '4551', '3735', 'W', '4559', 'z']

W1447Q53854061Du1837S3301b40658411U