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: 5, 9, ['B', 'I', 'j', 'D', '643', 'B', '4423', '8025', '2379', 'D', '9555', '1625', '8017', 'm']

643B442380252379