#include<bits/stdc++.h>
using namespace std;
int zh(string k)
{
    int t = 1;
    int r = 0;
    for(int i = k.size()-1;i>=0;i--)
    {
        r = r+(k[i]-48)*t;
        t = t * 2;
    }
    return r;
}
int main()
{
    string n,m;
    cin>>n;
    if(n.size()% 3==1)
    {
        n = "00" + n;
    }
    if(n.size()% 3==2)
    {
        n = "0" + n;
    }
    for(int i=0;i<n.size();i=i+3)
    {
        m = n.substr(i,3);
        cout<<zh(m);
    }
}
/**************************************************************
	Problem: 1293
	User: wuyichen
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2076 kb
****************************************************************/