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:
3, 4, ['l', '2121', '2511', '383', '9105']

Ex Output:
2511383


Ex Input:
10, 18, ['1863', 'R', '1949', '3689', 'w', '1387', '4909', '9037', '7395', 'X', '9247', 'T', 'n', 'B', '6779', 'b', '1799', '6755', 'z', '3861', '3669', 'G', 'V']

Ex Output:
X9247TnB6779b17996755


Ex Input:
13, 17, ['y', '2971', 'r', 'p', 'k', '7641', '4579', 'c', '5963', '7717', '6199', '3843', 'm', 'N', 'A', 'P', '8881', 'H', 'c']

Ex Output:

mNAP8881


