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: 4, 16, ['3409', '9471', 'p', 'U', '1629', 'd', 'm', 'k', 'h', '9169', '229', 'i', '3', '6351', 'o', '2345']

U1629dmkh9169229i36351o2345