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: 3, 15, ['A', '1739', '9821', '6845', '3349', '9125', '8731', '461', '2937', 'b', 'U', '1381', 'j', '95', '1471']

982168453349912587314612937bU1381j951471