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:
5, 13, ['9669', '7783', 'M', 'Q', 'U', '3521', '9305', 'X', 'd', '7401', '4845', '9237', 'P', 'o', 'O']

Ex Output:
U35219305Xd740148459237P


Ex Input:
14, 18, ['i', 'm', 'v', '7021', 'P', '1569', 'G', '5761', '7325', '7577', '3361', 'f', 'i', 'c', '5375', 't', '7731', 'P', '9311', 'k', '6891', '9619', '2187', '9465', 'c', '2097', 'U']

Ex Output:
c5375t7731P


Ex Input:
11, 19, ['F', 's', 'D', 'B', '2137', 'r', '7797', '3379', 'I', 'T', '7857', 'W', '6679', 'l', 'j', '5463', 'j', '759', 'n']

Ex Output:

7857W6679lj5463j759n