#include <bits/stdc++.h>

#define ms(a,b)         memset(a,b,sizeof(a))
#define pb(a)           push_back(a)
#define db              double
#define ft              float
#define ll              long long
#define ull             unsigned long long
#define ff              first
#define ss              second
#define sz(x)           x.size()
#define qu              queue
#define pqu             priority_queue
#define vc              vector
#define vi              vector<int>
#define vll             vector<long long>
#define pii             pair<int,int>
#define pis             pair<int,string>
#define psi             pair<string,int>
#define all(x)          x.begin(),x.end()
#define CIN             ios_base::sync_with_stdio(0); cin.tie(0)
#define loop0(i,n)      for(int i=0;i<n;i++)
#define loop1(i,n)      for(int i=1;i<=n;i++)
#define stlloop(x)     for(__typeof(x.begin()) it=x.begin();it!=x.end();it++)
#define gcd(a, b)       __gcd(a, b)
#define lcm(a, b)       ((a)*((b)/gcd(a,b)))
#define case(z,x)       cout<<"Case "<<i<<": "<<x<<endl
#define case(z)         cout<<"Case "<<z<<": "
#define PI              3.14159265358979323846264338328
#define valid(tx,ty)    tx>=0 && tx<r && ty>=0 && ty<c
#define MAX             2000

/*----------------------Graph Moves----------------*/
//const int fx[]={+1,-1,+0,+0};
//const int fy[]={+0,+0,+1,-1};
//const int fx[]={+0,+0,+1,-1,-1,+1,-1,+1};   // Kings Move
//const int fy[]={-1,+1,+0,+0,+1,+1,-1,-1};  // Kings Move
//const int fx[]={-2, -2, -1, -1,  1,  1,  2,  2};  // Knights Move
//const int fy[]={-1,  1, -2,  2, -2,  2, -1,  1}; // Knights Move
/*------------------------------------------------*/

using namespace std;

int main()
{
     CIN;
//    freopen("in.txt","r",stdin);
//    freopen("out.txt","w",stdout);

    string n;
    ll a,b,c,r,sum;
    while(cin>>n && n!="0")
    {
        sum=0;
        loop0(i,sz(n))
        {
            a=sz(n)-i;
            b=pow(2,a);
            c=b-1;
            r=(n[i]-'0')*c;
            sum=sum+r;
        }
        cout<<sum<<endl;
    }
    return 0;
}

#include <iostream>
#include <string>

using namespace std;

int main()
{
    int t,i,j,k,s_l,c,d;
    string s,s1="one",s2="two",s3="three";
    cin>>t;
    for(k=0;k<t;k++)
    {
        cin>>s;
        s_l=s.length();
        if(s_l==3)
        {
            c=0;
            d=0;
            for(i=0,j=0;i<3;i++,j++)
            {
                if(s[i]==s1[j])
                {
                    c++;
                }
                if(s[i]==s2[j])
                {
                    d++;
                }
            }
            if(c==2 || c==3)
            {
                cout<<"1"<<endl;
            }
            if(d==2 || d==3)
            {
                cout<<"2"<<endl;
            }
        }
        else if(s_l==5)
        {
            c=0;
            for(i=0,j=0;i<5;i++,j++)
            {
                if(s[i]==s3[j])
                {
                    c++;
                }
            }
            if(c==4 || c==5)
            {
                cout<<"3"<<endl;
            }
        }
    }

    return 0;
}

#include <iostream>
#include <string>

using namespace std;

int main()
{
    int i;
    string s1;
    for(i=1;;i++)
    {
        cin>>s1;
        if(s1=="#")
        {
            break;
        }
        else
        {
            if(s1=="HELLO")
            {
                cout<<"Case "<<i<<": "<<"ENGLISH"<<endl;
            }
            else if(s1=="HOLA")
            {
                cout<<"Case "<<i<<": "<<"SPANISH"<<endl;
            }
            else if(s1=="HALLO")
            {
                cout<<"Case "<<i<<": "<<"GERMAN"<<endl;
            }
            else if(s1=="BONJOUR")
            {
                cout<<"Case "<<i<<": "<<"FRENCH"<<endl;
            }
            else if(s1=="CIAO")
            {
                cout<<"Case "<<i<<": "<<"ITALIAN"<<endl;
            }
            else if(s1=="ZDRAVSTVUJTE")
            {
                cout<<"Case "<<i<<": "<<"RUSSIAN"<<endl;
            }
            else
            {
                cout<<"Case "<<i<<": "<<"UNKNOWN"<<endl;

            }
        }
    }
    return 0;
}

#include <iostream>
#include <string>

using namespace std;

int main()
{
    int i,j,t,s_l,a,b,c,d,e,f,g,x;
    string s;
    cin>>t;
    for(i=0;i<t;i++)
    {
        cin>>s;
        a=0;
        b=0;
        c=0;
        d=0;
        e=0;
        f=0;
        g=0;

        s_l=s.length();
        for(j=0;j<s_l;j++)
        {
            if(s[j]=='M')
            {
                a++;
            }
        }
        for(j=0;j<s_l;j++)
        {
            if(s[j]=='A')
            {
                b++;
            }
        }
        for(j=0;j<s_l;j++)
        {
            if(s[j]=='R')
            {
                c++;
            }
        }
        for(j=0;j<s_l;j++)
        {
            if(s[j]=='G')
            {
                d++;
            }
        }
        for(j=0;j<s_l;j++)
        {
            if(s[j]=='I')
            {
                e++;
            }
        }
        for(j=0;j<s_l;j++)
        {
            if(s[j]=='T')
            {
                f++;
            }
        }
        x=0;
        for(j=1;;j++)
        {
            if(a>=1*j && b>=3*j && c>=2*j && d>=1*j && e>=1*j && f>=1*j)
            {
                x++;
            }
            else
            {
                break;
            }
        }
        cout<<x<<endl;
    }
    return 0;
}