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: 17, 17, ['c', '8571', '1363', '3651', 'g', 't', 'F', 'p', 'P', 'o', 'b', 'y', 'w', '1271', '6029', 'F', 'u', '3975', '421']

u