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, 10, ['J', '3463', 'P', 'X', '4207', 'Z', '9345', '8067', 'Y', '4853', '3057', 'u', 'B', 'G']

3463PX4207Z93458067Y4853