#include<bits/stdc++.h> using namespace std; int main(){ int x,x1,x2,x3,x4; cin>>x; x1=x%1000%100%10; x2=(x-x1)%1000%100/10; x3=(x-x1-x2)%1000/100; x4=(x-x1-x2-x3)/1000; if(x3==9&&x1!=0&&x2!=0){ cout<<x4+1<<0<<0<<0; } else if(x4==9&&x1!=0&&x2!=0&&x3!=0) cout<<10000; else if(x4!=9&&x3!=9&&x2==9&&x1!=9) cout<<x4+1<<x3+1<<00; }