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, 7, ['D', 'f', '547', 'r', 'W', '8611', '869', '6649', 'V', '6969', '2731', 'q', '3687', 'q']

Ex Output:
Df547rW8611869


Ex Input:
1, 2, ['7161', '3547', 'u']

Ex Output:
71613547


Ex Input:
6, 12, ['435', '8173', '4287', '955', 'E', '5223', 'A', '4579', '4733', 'q', 'm', '5703', 'i']

Ex Output:

5223A45794733qm5703