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:
1, 7, ['6925', '5419', 'b', '1297', '4309', '8919', 'H', 'h', 'P', 'q', '2907', '5573', 'G', '4767', 'U', 'R', '6717', 's', 'I', '4477']

Ex Output:
69255419b129743098919H


Ex Input:
4, 8, ['R', 'D', 'x', 't', '6721', 'w', 'V', 'v', '6427', 'L', '2487', 'W', '7339', '9515', 'a', 'I', 'E', '3897', '4869']

Ex Output:
t6721wVv


Ex Input:
5, 20, ['2561', '9005', '8673', 'E', '2987', '501', '9875', 'A', 'O', 'j', 'e', '5841', 'T', 'I', 'x', '2525', '941', 'B', '2179', '8849', 'C', 'f', 'n', 'D', '7903']

Ex Output:

29875019875AOje5841TIx2525941B21798849