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.
--------
Question: 2, 18, ['9999', '5437', '9821', 'o', '4457', '4227', 'v', '4715', '9195', 'I', 'J', 'o', '443', '8377', 'j', '1185', 'K', 'z', 'q', '8353']

Answer: 54379821o44574227v47159195IJo4438377j1185Kz


Question: 11, 14, ['o', 'C', '4453', '2389', '9139', 'q', 'x', 'e', 'E', '6401', '6583', 'U', '9263', 'X', 'B', '6715', 'e', '4007', '9979', '1491', 'z', '5003', 'q', '6053', '8863', 'S', 'l', 'Y', 'C', 'K']

Answer: 6583U9263X


Question: 18, 21, ['k', 'T', '1235', 'r', 'Y', 'M', '4935', '281', '189', '2741', '1963', '4093', '8631', '3809', '7659', '2767', '2791', 's', 'C', '5545', 'B', 'J', '3041', 'u', '6029', 'K', '3935']

Answer:
sC5545B