#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,i=0,a[4];
	cin>>n;
	while(i<=3){
		a[i]=(n%10+5)%10;
		n/=10;
		i++;	
	}for(i=0;i<4;i++){
		cout<<a[i];
	}  
	return 0;
}
/**************************************************************
	Problem: 1109
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/