Task: Program Execution
Input (English): 20, 21, ['y', 'X', '9391', 'P', 'f', '8711', 'Q', 'H', '2883', 'Q', 'V', 'N', '7313', '2947', 'K', 'R', '3659', 'Y', 'g', 'z', 'G', '8893', '9423', '8589', '5505', '7239']
Output (English): G, z