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, 17, ['P', '5851', 'W', 'L', '8311', '6287', 'Q', 'T', '7073', '4047', '9169', 'v', '4471', '1075', 'A', '2889', 'i', '3693', 'a', 'J', '691', '9561', '5233', 'T']

Ex Output:
WL83116287QT707340479169v44711075A2889i


Ex Input:
1, 3, ['K', '7169', '2913', '8631', 'g']

Ex Output:
K71692913


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

Ex Output:

k