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:
4, 4, ['Y', 'f', '3041', 'O', '9579', '1187']

Ex Output:
O


Ex Input:
2, 24, ['1005', '245', '3129', 'O', '7039', 'Y', 's', 'h', '5941', 'h', '2601', 'K', '1643', 'n', '27', 'T', '6865', 'h', 'w', '1707', '8443', '895', 'q', 't', 't', '4141']

Ex Output:
2453129O7039Ysh5941h2601K1643n27T6865hw17078443895qt


Ex Input:
9, 12, ['2709', '2009', 'k', 'Y', 'K', '6793', 's', '3393', 'L', '6907', 'k', 'W']

Ex Output:

L6907kW