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, 11, ['W', 'E', '8199', '2723', 'O', '75', '2347', '6171', '8743', 'i', '7057', '357', 'N', 'J', 'K']

2723O75234761718743i7057