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: 4, 8, ['L', 'a', 'l', '5797', '6733', 'f', 'x', 'O', '2199', 'v', 'n', '2983', 'K', 'n', '5695', '9871', 'U', '1323', '2153', 'v', '7897']

57976733fxO