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, 17, ['2783', '1855', 'Y', 'k', 'S', 'r', 'K', 'x', '8229', '1509', 'Y', '1839', 'q', 'k', 'r', 'a', 'Q', 'q', '1213', 's']

YkSrKx82291509Y1839qkraQ