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: 11, 15, ['2503', '7455', 'L', 'Q', '7117', '1393', 'c', '8431', 'B', '1067', '1617', '167', 'x', '5237', 'W']

1617167x5237W