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: 17, 21, ['y', '423', 's', '7225', 'm', '4607', '6223', '8017', 'U', 'Q', 'b', 'T', 'o', '1629', '8439', 'R', 'F', 'J', 'q', 'D', '6589', '9173', '9351']

FJqD6589