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: 6, 20, ['s', '2207', '1143', '7277', '6415', 'V', '3311', '1887', 'h', '8897', '8159', '1353', 'W', 'B', 'X', 'c', 's', 'n', 'w', '8977', 's', '4381', '1423', 't']

V33111887h889781591353WBXcsnw8977