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:
1, 4, ['6945', 'D', 'a', 's', 'q', 'M']

Ex Output:
6945Das


Ex Input:
2, 3, ['1211', 'B', '3591', '9293', '1455', 'o', 'O', 'D', 'g', 'F', 'e']

Ex Output:
B3591


Ex Input:
4, 5, ['9833', 'L', 'S', '5679', '6399', '3123', '4829', 'l', 'v', '6589', '9797', 'j', '4655', 'x', '6869', '6235', 'b']

Ex Output:

56796399