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, ['w', 'B', 'N', 'D', 'm']

Ex Output:
NDm


Ex Input:
3, 12, ['8127', '8893', 'u', 'a', '3305', 'Y', '9121', 'h', 'R', '4505', '7829', 'T', '6431', '717', '6317', '4431', '9801', '1485', 'y', '2915', 'i', 'o', '2073', '9427', '2391', '1919']

Ex Output:
ua3305Y9121hR45057829T


Ex Input:
1, 1, ['U', '7291', 'Q', '5939', '6609', '6751']

Ex Output:

U