#include <iostream>
using namespace std;

int main()
{
    unsigned int a;
    while(cin>>a)
    {
        string s;
        while(a)
        {
            char c;
            c=a%2+'0';
            s=c+s;
            a=a/2;
        }
        cout<<s<<endl;
    }
    return 0;
}