题解 | #密码游戏#
密码游戏
https://www.nowcoder.com/practice/36641ab168664384aff798ba7ce34bc1
num = input()
num1 = int(num[0])
num2 = int(num[1])
num3 = int(num[2])
num4 = int(num[3])
num1 = (num1 + 3) % 9
num2 = (num2 + 3) % 9
num3 = (num3 + 3) % 9
num4 = (num4 + 3) % 9
print(f"{num3}{num4}{num1}{num2}")
