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: 8, 14, ['4581', '7843', '8653', 'B', '5403', 'y', '257', '7131', 'W', '2181', '7107', '5309', '5319', '7227', '3837']

7131W21817107530953197227