Task: Program Execution
Input (English): 10, ['P', '2973', '7957', '5357', '7475', '4853', 'l', 'k', 'K', '2785', 'd', '767', '7427', 'C', 'a', '1099', '6269', '1593', 'X', '781', 'O', 'A']
Output (English): P, d, O