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:
14, 18, ['i', 'm', 'v', '7021', 'P', '1569', 'G', '5761', '7325', '7577', '3361', 'f', 'i', 'c', '5375', 't', '7731', 'P', '9311', 'k', '6891', '9619', '2187', '9465', 'c', '2097', 'U']

Ex Output:
c5375t7731P


Ex Input:
8, 11, ['F', '8031', '1539', '6973', '3103', 'I', '9639', 'm', 'x', 'j', '9811']

Ex Output:
mxj9811


Ex Input:
9, 13, ['9713', '4381', '5047', '5249', 'X', 'y', '8139', '7147', '1133', 'O', 'Z', 'd', '1707', '1079', 'C', '309', '2899', 'C']

Ex Output:

1133OZd1707