#include<iostream>
using namespace std;
int main(){
int a[100],k,n,i;
while(cin>>n){
k=0;
while(n>0){
if(n&1)a[k++]=1;
else a[k++]=0;
n>>=1;
}
for(i=k-1;i>=0;--i)
if(i==0)
cout<<a[i]<<endl;
else
cout<<a[i];
return 0;