Task: Program Execution
Input (English): 18, 20, ['M', 'y', '673', 'v', '5431', '4031', '1313', 'F', '4599', 'X', '3009', 'i', '9269', 'Q', '5087', 'W', '1015', 'B', 'Q', '1907', '2743']
Output (English): B, Q, 1907