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: 9, 20, ['K', '3623', '109', '1433', '4173', 's', 'N', 'z', '6379', 'S', 'l', 'z', '827', '6123', 'N', 'N', '9607', '9161', 'q', '7733', 'p', '953', 'u', 'm', '1713']

6379Slz8276123NN96079161q7733