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:
7, 13, ['r', 'o', 'E', '8885', '4003', '9111', 'd', '7123', '1423', 'P', '4475', 'o', 'n', 'B']

Ex Output:
d71231423P4475on


Ex Input:
5, 18, ['c', 'r', 'H', '8181', '8047', '6667', 'r', 'l', 'r', 'S', '3747', '635', 't', 'h', 'm', 'v', 'e', '3399', 'z', '161', 'J', 'i', '2639']

Ex Output:
80476667rlrS3747635thmve3399


Ex Input:
8, 21, ['5153', '903', '6327', '4905', '605', '5305', '6103', 'c', 'e', 'O', 'O', '4987', '9561', 'u', 'c', 'r', 'g', '31', 's', '3547', '6475', 'x', 'c', 'v', 'h', '8409']

Ex Output:

ceOO49879561ucrg31s35476475