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

	return 0;
}

/**************************************************************
	Problem: 1359
	User: fuyijun
	Language: C++
	Result: Accepted
	Time:11 ms
	Memory:2080 kb
****************************************************************/