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:
6, 7, ['5491', 'o', '6309', 'O', 'L', 'B', 'y', '5305']

Ex Output:
By


Ex Input:
12, 16, ['V', 'b', '5681', '3457', '2951', 'h', 'B', 'W', '4177', 'P', 'T', '2747', '7697', '303', '5563', '2593', 'X', 'v', '8885', 'E']

Ex Output:
2747769730355632593


Ex Input:
19, 24, ['19', '7939', '5275', 'g', 'p', 'K', 'D', '915', '9573', 'W', '8469', '2611', 'q', 'y', 'u', '5595', 'H', 'y', 'q', 'e', 'M', 'g', 'I', '9737']

Ex Output:

qeMgI9737