#include<bits/stdc++.h>
using namespace std;
int ans,jz=1,k=8,a[1001],xb;
string s;
int main()
{
    cin>>s;
    for (int i=s.size()-1;i>=0;i--)
    {
        if (isdigit(s[i]))
            ans+=(s[i]-48)*jz;
        else
            ans+=(s[i]-55)*jz;
        jz*=16;
    }
    int n=ans;
    while (n)
    {
        a[++xb]=n%k;
        n/=k;
    }
    for (int i=xb;i>=1;i--)
        cout<<a[i];
    return 0;
}