#include<bits/stdc++.h> using namespace std; string s; int a[100010]; int main(){ //freopen("number.in","r",stdin); //freopen("number.out","w",stdout); ios::sync_with_stdio(false); cin.tie(0); cout.tie(0); cin>>s; s=' '+s; int t=9-(s[1]-'0'); a[1]=9; int w=1; cout<<a[1]; for(int i=2;i<s.size();i++){ a[i]=s[i]-'0'; a[i]+=t; a[i]%=10; if(a[i]!=9&&w==1){ a[i]+=1; w=-1; } cout<<a[i]; } }