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:
8, 13, ['469', '2079', 'r', '3969', '9143', 'K', 'U', 'w', 'U', 'b', 'N', '8587', '7767', 'f']

Ex Output:
wUbN85877767


Ex Input:
16, 16, ['9005', 'k', '8959', '781', 'L', 'q', '5191', 'O', '9913', 'i', '4207', '7995', 'j', '8783', 'x', 'D']

Ex Output:
D


Ex Input:
2, 10, ['u', 'E', 'B', '4843', '8313', 'T', 'Z', '5883', 'U', '2515', 'Z', '6951', '5779', '1291', 'b', '6437', 'M', '2461', '9459', '2243', '9003', '4545', 'h', '9297', 's', 'g']

Ex Output:

EB48438313TZ5883U2515