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, 16, ['863', '1113', '7781', 'u', '8731', '8989', '6133', 'k', '1559', '13', '9305', '1253', '3259', 'n', 'Z', '189', '5913', 'B']

k155913930512533259nZ189