# 先写一行
[print("Hi, {0}! Welcome to Nowcoder!".format(user)) if user != "Niu Ke Le" else print("Hi, {0}! Welcome to Nowcoder!".format(user), "Happy Programmers' Day to everyone!", sep='\n') for user in ["Niuniu", "Niumei", "Niu Ke Le"]]