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, ['1011', 'd', '7535', 'w', '8647', 'K', 'i', 'i']

Ex Output:
d


Ex Input:
4, 5, ['W', 'i', 'p', 'N', '7371', '6915', 'R', 'B', 'I', 'o', '6435', 'y', '9889', '6989', '4923', '5001', '7201', 'x', 'm', 'J', '6405', '2107', '617', '6553', 's', 'z', 'z', 'r']

Ex Output:
N7371


Ex Input:
3, 3, ['5051', '2793', '3123']

Ex Output:

3123