Task: Program Execution
Input (English): 8, 10, ['4167', 'P', 'k', '5755', '6903', '9885', 'V', 'H', 'E', 'B', '2601', 's', 'p', 'l', '9147', 'B', 'Y', '3705', 'C', '1839', '7023', '5953', 'H', 'h', '3023']
Output (English): B, E, H