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, 17, ['w', '589', '6851', 'J', '9069', 'U', 'T', 'n', 'n', 'w', '7693', '4827', 'D', 'C', 'N', 'p', 'p', 'J', 'F', 'E', 'b']

J9069UTnnw76934827DCNpp