#include<bits/stdc++.h>
using namespace std;

int main(){
string s,s2,s1[10]={"000","001","010","011","100","101","110","111"};
	cin>>s;
	for(int i=0;i<s.size();i++){
		s2=s2+s1[s[i]-48];
	}
	while(s2[0]=='0'){
		s2.erase(0,1); 
	}
	if(s2==""){
		cout<<"0";
	}else{
		cout<<s2;
	}
}

/**************************************************************
	Problem: 1359
	User: wuzhijing
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2080 kb
****************************************************************/