Task: Program Execution
Input (English): 2, 7, ['9827', 'L', 't', 'q', '3621', '5251', '9555', 'S', 'H', 'y', 'X', 'H', '3267', 'R', 'l', '4045', '3421', 'f', 'W', 'K']
Output (English): L, H, 4045