#include<bits/stdc++.h>
using namespace std;
int main(){
    string s,s1;
    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: chenlingxuan
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2076 kb
****************************************************************/