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, 4, ['7311', '317', 'w', 'c', 'S', '5919', '3377']

Ex Output:
wc


Ex Input:
2, 17, ['5049', 'L', 'l', 'b', '5473', '9143', 'd', 'l', '4337', 'e', 'G', '5631', '7089', '2629', '3987', '8197', 'c', '8111', '1897', 'b', '1519', '2185', '8841', '7507']

Ex Output:
Llb54739143dl4337eG56317089262939878197c


Ex Input:
10, 10, ['l', 'N', '5281', '4359', 'J', '1967', 'B', 'f', '8893', '217']

Ex Output:

217