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:
16, 21, ['O', '951', '1431', 'c', '7377', '623', 'z', '6413', '6679', 'q', 'H', '8827', 'w', 'K', 'A', 's', 'f', 'S', 'i', 'j', '1941']

Ex Output:
sfSij1941


Ex Input:
5, 10, ['5897', 'u', 'w', 'S', '6063', '4879', '6021', 'M', '6205', 'N', 'N', '5923', '651', '817', 'M', 'w', '8581']

Ex Output:
606348796021M6205N


Ex Input:
3, 13, ['J', '7773', '8391', 'G', '6387', 'n', 'E', 'v', 'c', 'i', 'i', 'n', 'n', 'Z', '2661', '5289']

Ex Output:

8391G6387nEvciinn