Definition: 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.
Input: 21, 22, ['M', 'g', '9271', '2969', 'Q', '8465', '2013', 'y', 'G', 'a', 'g', 'R', 'F', 'g', '7919', 'K', 'w', 'f', '1743', '7737', '4285', 'O', '2087', '4523', 'W', '1615', 'S', 'Z', 'v']

4285O