题解 | #密码游戏#

num=int(input())
ge=(num%10+3)%9
shi=(num//10%10+3)%9
bai=(num//100%10+3)%9
qian=(num//1000%10+3)%9
ge=str(ge)
shi=str(shi)
bai=str(bai)
qian=str(qian)
print(shi+ge+qian+bai)