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:
3, 5, ['f', '3797', 'm', 'Q', 'g', '1147']

Ex Output:
mQg


Ex Input:
7, 8, ['C', 'W', '7259', 'e', 'O', '6851', '6971', 'q', 'r', 'G', '8919', '3871', '141', 'u', 'R']

Ex Output:
6971q


Ex Input:
3, 10, ['R', 'l', '8973', '5993', 'o', '9153', '193', 'J', 'n', 'o', 'M', '753', '4585', 'K', 'r', 'U', '4177']

Ex Output:

89735993o9153193Jno