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: 7, 20, ['L', '7263', 'P', '2041', '2493', '8003', 'Y', '2575', '4129', '5455', '3007', '2321', 'K', 'S', '2409', '4221', 'n', '6469', '9115', 'I', '8133', '4555', '1621', '4237', 'z', '655', '9413']

Y25754129545530072321KS24094221n64699115I