#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: fuyijun
	Language: C++
	Result: Accepted
	Time:6 ms
	Memory:2076 kb
****************************************************************/