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, ['d', 'O', 'i', '131', 'W', '8287', 'I', '3619', '7155', 'U', '6983', '1451', 'A', 'L', 'M', 'w', 'W', 's', 'p', 'Z', '5439', 'p', 'e', '6677']

WspZ5439