Task: Program Execution
Input (English): 9, ['R', '9439', 'A', '9991', '6547', '7691', 'Y', 'm', '6313', 'l', 'r', 'I', '6665', 'g', '3571', 'O', 'o', 'U', 'I', 'g', 'I', 'f', 'W', 'B', '8031', '6071', '961', 'Z']
Output (English): R, l, I, Z