Task: Program Execution
Input (English): 3, 20, ['Y', '1805', 'f', 'W', 'G', 'N', 't', 'U', 'M', '3105', '5317', '797', '8695', 'l', 'l', '1789', 'w', 'K', '4675', '8423', '5447', '6567']
Output (English): f, W, G, N, t, U, M, 3105, 5317, 797, 8695, l, l, 1789, w, K, 4675, 8423