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: 2, 24, ['f', '643', 'H', '3473', '2391', 'M', '9789', 'X', 'L', 'n', '401', 'X', '1749', '8191', 'a', '8447', '5353', '8781', 'H', '8345', '1655', '5341', '2951', '5567']

643H34732391M9789XLn401X17498191a844753538781H83451655534129515567