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:
10, 16, ['s', '9789', '1437', '1339', 'l', '4411', 'b', 'd', '4489', 'U', '2967', 'j', 'g', '2589', '8319', 'I']

Ex Output:
U2967jg25898319I


Ex Input:
13, 13, ['R', '6791', 'h', 'j', '4189', '2425', 'g', 'w', '343', '5621', '69', '9873', '939']

Ex Output:

939