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:
18, 18, ['H', '7555', '2635', 'l', 'Y', '6449', 'K', '31', 'A', 'h', 'x', 'G', '4519', 'B', '4221', 'k', 't', 'w', '4167', '5103', '9363', 'g']

Ex Output:
w


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:
7, 17, ['6447', '5275', '4339', '4393', 'I', 'Z', '8529', '1699', 'A', 'i', '2953', '8017', '2707', '6699', 'E', 'K', 'I', 'K', 'I', 'Z', '5543', 'N', '9817', '7357', 'M', 'A', 'F']

Ex Output:

85291699Ai2953801727076699EKI