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, 7, ['5731', 'm', 'W', '5389', 'N', '4987', 'c', '3871', 'T']

Ex Output:
mW5389N4987c


Ex Input:
1, 10, ['f', 'C', '5879', '6395', '8353', 's', 'T', 'u', '9245', '6309', 'N', 'F', '259', '993']

Ex Output:
fC587963958353sTu92456309


Ex Input:
4, 9, ['1299', 'Y', '4181', '3851', '8549', '4443', 'O', '2687', '1145', 'R', 'l', '9667', 'J', 'B', 'a', 'a', 'E', 'H', '6189', '3511']

Ex Output:

385185494443O26871145