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, 5, ['3123', '67', '6019', '9385', '8251', 'b', 'D', '4957', 'u', '2091']

Ex Output:
312367601993858251


Ex Input:
3, 23, ['C', 's', 'j', 'P', 'O', '6289', 'U', '1031', 'c', 'b', '8547', 'b', '9001', '7117', '7107', 'g', '6091', '7525', '7209', '2819', 'f', 'z', '4449', 'N', '4849']

Ex Output:
jPO6289U1031cb8547b900171177107g6091752572092819fz4449


Ex Input:
1, 2, ['2391', 'D']

Ex Output:

2391D