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:
5, 5, ['m', '6561', '8687', '4209', 'x', 'u', 'D', '3673', '6175', '5195', 'n', '71', 'h', 'U', '1899', '4559', '2419', 't', 'a', '4165']

Ex Output:
x


Ex Input:
5, 16, ['4857', 'c', 'a', '8757', '5345', 'k', 'n', '4579', 'N', 'b', '2307', 'e', 'V', '6941', 'i', '9495', '4431', '3791', '9647', '7883']

Ex Output:
5345kn4579Nb2307eV6941i9495


Ex Input:
8, 11, ['f', 'E', 'V', 't', '1485', '9239', '5641', 'F', 'Q', 'U', '2767', 'T', 'O', '4753', 'j', 't', 'p', 'F', '4193']

Ex Output:

FQU2767