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.

Ex Input:
3, 10, ['3711', 'B', 'i', 'R', '7017', '147', '883', 'O', '8643', '5263', '5225', '2811', 'B', 'M', 'Q', 'W', 'F', 'i', 'L', 'l', '9401', '6669', 'u', 'A']

Ex Output:
iR7017147883O86435263


Ex Input:
3, 9, ['y', '5877', '5963', '7733', 'c', 'U', '9497', 'X', '4111', '5007', 'h', '6249', 'e', 'G', '1391', '5707', '2877']

Ex Output:
59637733cU9497X4111


Ex Input:
7, 10, ['99', '8267', '2059', 'D', 'd', '9861', 'O', '6645', 'A', 'n', 'm', 'F', 's']

Ex Output:

O6645An