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:
4, 8, ['G', 'f', 'x', 'd', '723', 's', 'J', '5709', 'Q', 'K', '4341', '3731', '3705', 'g', 'c', 'u', 'j', '861', '3793', '8695']

Ex Output:
d723sJ5709


Ex Input:
2, 2, ['m', 'k', '2393']

Ex Output:
k


Ex Input:
6, 10, ['4773', 'h', 'W', '9129', '1615', 'E', '7171', 'O', '2139', '9201', 'x', '3005', 'n']

Ex Output:

E7171O21399201