#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
typedef unsigned long long ULL;

int main()
{
    ULL n;
    while(cin>>n)
    {
        vector<int> q;
        for(int i=0;i<32;i++)
        {
           q.push_back(n>>i&1);
        }
        while(q.size()>1&&q.back()==0) q.pop_back();
        for(int i=q.size()-1;i>=0;i--)
        {
            cout<<q[i];
        }
        cout<<endl;
    }
    return 0;
}