题解 | #密码游戏#
密码游戏
https://www.nowcoder.com/practice/36641ab168664384aff798ba7ce34bc1
num = input()
arr = [0, 0, 0, 0]
for i in range(4):
arr[i] = (int(num[i]) + 3) % 9
temp=arr[0]
arr[0]=arr[2]
arr[2]=temp
temp=arr[1]
arr[1]=arr[3]
arr[3]=temp
for i in arr:
print(i,end='')
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