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, 21, ['i', '3601', '9491', '2269', '6927', 'D', 'N', '3853', '3107', 'Z', '3719', 'S', 'G', '3315', 'R', '8489', 'Z', 'L', 'd', '8187', 'f', '8667', '6173', '2125', 'W']

ZLd8187f