Task: Program Execution
Input (English): 4, 9, ['8943', 'E', 'y', '853', 'n', 'f', '8319', 'e', 'K', '7583', '8593', 'S', 'P', '8827', '4507', 'P', '8197', '439', 'U', '7859', '7717', 'Y', 'n']
Output (English): 853, P, Y