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:
4, 8, ['R', 'D', 'x', 't', '6721', 'w', 'V', 'v', '6427', 'L', '2487', 'W', '7339', '9515', 'a', 'I', 'E', '3897', '4869']

Ex Output:
t6721wVv


Ex Input:
3, 17, ['h', 'P', '5917', '8309', '4307', '8769', 'h', '9959', '9447', 'x', '6891', 'y', 'U', 'l', '6667', 'D', 'Z', 'k', 's', '2833', 'g', 'G', 'I', 'W']

Ex Output:
5917830943078769h99599447x6891yUl6667DZ


Ex Input:
2, 4, ['h', '5305', 'o', 'm', '5859', '3203', '755']

Ex Output:

5305om