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:
21, 24, ['F', '9793', 'R', '7633', '6831', 'P', '4285', '7887', 'H', '307', '4865', 'M', '4521', '565', 'e', 'i', 'f', '8845', 'T', 'N', '3485', 'n', '1731', '4963', 'Y', '7493']

Ex Output:
3485n17314963


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

Ex Output:
O


Ex Input:
11, 13, ['2721', 'M', 'B', 'P', 'b', '2815', '7321', '5245', 'A', 'F', 'H', 'x', 'c', 'M', '283', 'i', '2891', '8995', '3377', '3817', '8653']

Ex Output:

Hxc