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:
17, 18, ['2961', 'I', 'Z', '9343', '5893', '7835', '311', '5889', '2031', '7107', '3723', '6545', '1295', '6709', '5993', 'J', 'B', 'g', '6261', 'X', '6781', '3825', 'j', 'C', '7881', 'a', 'z', 'x', '7173', 'z']

Ex Output:
Bg


Ex Input:
1, 1, ['6369', '4647']

Ex Output:
6369


Ex Input:
9, 10, ['a', 'A', '5773', 'Y', '1773', 'r', 'z', '371', 'G', 'V', '8991', 'C', 'I', 'j', 'c', 'w', 'N', 'W', 'O', 'M', 'y', '4945']

Ex Output:

GV