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:
4, 5, ['187', 'k', 'X', '4759', 'G', 'm']

Ex Output:
4759G


Ex Input:
8, 8, ['137', 'b', '7765', 'l', 'E', '6783', '4243', '715', 'm', 'R', '4375', '8647', 'c', 'l', '5443', '2711', 'x', 'J', '3455', 'x']

Ex Output:
715


Ex Input:
6, 9, ['4467', '5659', '5199', '3355', '2459', 'Z', 'F', 'z', 'K', '1771', 'G', '5799', '6171', '1121']

Ex Output:

ZFzK