#include <iostream>
#include <stack>
using namespace std;
int main() {
int n,temp;
stack<int> st;
while(cin >> n){
while(n != 1){
temp = n % 2;
st.push(temp);
n = n / 2;
}
cout << n;
while( !st.empty() ) {
int &tmp = st.top();
printf("%d", tmp);
st.pop();
}
cout << endl;
}
}