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, 5, ['f', '3797', 'm', 'Q', 'g', '1147']

Ex Output:
mQg


Ex Input:
4, 5, ['7753', 'N', '7285', '7559', '7245', 'W', 'W', '2525', '9219', '2041', 'n', 'k']

Ex Output:
75597245


Ex Input:
3, 6, ['3315', 't', 'B', 'K', '631', 'e', '3715', 'o', '2761', 'e', 'a', 'K', 'J', '6837']

Ex Output:

BK631e