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