#include<bits/stdc++.h> using namespace std; string s; int main(){ int n; cin>>s; while((s.size()%3!=0)){ s='0'+s; } for(int i=0;i<s.size()-2;i+=3){ n=(s[i]-'0')*4+(s[i+1]-'0')*2+(s[i+2]-'0')*1; cout<<n; } return 0; }