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, 8, ['9045', 'C', 'V', 'G', 'Q', 'I', '9821', 'D']

Ex Output:
9821D


Ex Input:
12, 23, ['S', 'O', 't', '3367', 'S', '6981', '8567', '4463', '3719', 'e', 'o', '123', '631', 'k', '4285', 'G', 'E', '1861', 'R', 'c', 'S', '3821', '4027', 'K', 'Z', '7187']

Ex Output:
123631k4285GE1861RcS38214027


Ex Input:
8, 9, ['U', 'z', '5115', '9889', '1627', 'X', 'R', '5751', '7601']

Ex Output:

57517601