#include<bits/stdc++.h>
using namespace std;
string s,s1;
int main(){
	cin>>s;
if(s.size()%3==1)	s="00"+s;
	else  if (s.size()%3==2)	s="0"+s;
	for(int i=0;i<s.size();i=i+3){
		s1=	s.substr(i,3);
		cout<<(s1[2]-48)*1+(s1[1]-48)*2+(s1[0]-48)*4;
	}
	return 0;
}


/**************************************************************
	Problem: 1293
	User: linweilun
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2076 kb
****************************************************************/