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, 19, ['K', 'X', '7907', 'q', '9587', '3037', '6277', 'D', 'H', '6185', '6775', '2505', '5841', 'z', 'u', '2285', '9575', '8269', 'm', 'z', '513', '6769', '1037', 'j', '2193']

Ex Output:
DH6185677525055841zu228595758269m


Ex Input:
9, 9, ['L', '2577', '9297', '6649', 'g', '2743', '2743', 'M', 'C', 'O', '3851', 'u', '9853', '1977', 'q', '3673', '7721']

Ex Output:
C


Ex Input:
7, 18, ['a', 'U', 'M', 'S', '9097', 'O', '1717', '8911', '8069', '9665', 'c', '3459', 'n', '8407', 'm', '8113', 'z', '8333', '7991', '6739', 'N', 'l', 'q', '2357']

Ex Output:

1717891180699665c3459n8407m8113z8333