题解 | #密码游戏#
密码游戏
https://www.nowcoder.com/practice/36641ab168664384aff798ba7ce34bc1
num = int(input())
num1 = num//1000
num2 = num//100 - num1
num3 = num//10 - (num1 * 100 + num2)
num4 = num % 10
num1 = (num1 + 3) % 9
num2 = (num2 + 3) % 9
num3 = (num3 + 3) % 9
num4 = (num4 + 3) % 9
num = num2 + num1*10 + num4*100 + num3*1000
if num < 1000:
print("0"+str(num))
else:
print(num)
超笨办法
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