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:
5, 7, ['L', 'L', '1691', '2221', 'W', '5023', '3925', 'p', '8279', '2293', 'h', '9061', 'r', '2863', 'p', 'U']

Ex Output:
W50233925


Ex Input:
1, 2, ['8679', 'K', 'X', 'g', 'J', '9499', 'N', '3085', '7369', '1339', 'J']

Ex Output:
8679K


Ex Input:
7, 8, ['4891', '929', 'B', '9905', 'y', '6707', 'f', 'V', 'C']

Ex Output:

fV