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: 3, 10, ['b', 'v', '3217', 'x', 'W', '9847', '2015', 'n', '2505', 'y']

3217xW98472015n2505y