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:
2, 2, ['k', 'B', 'V', '9213', 'w', '4869', '525']

Ex Output:
B


Ex Input:
5, 12, ['2463', '9553', 't', 'e', '7439', '7757', '7619', '8787', '1853', 'Q', 'u', 'V', '8243', '4889', 's']

Ex Output:
74397757761987871853QuV


Ex Input:
1, 3, ['J', 'q', '3433']

Ex Output:

Jq3433