#include <iostream>
using namespace std ;
int main() {
long long int d;
int b[100];
while(cin>>d){
int i=0;
if(d!=0){
while(d!=0) {b[i]=d%2; d=d/2; i++;}
for(i=i-1; i>=0; i--) cout<<b[i];
cout<<endl ;
}
else cout<<"0\n";
}
return 0;
}