#include<bits/stdc++.h> using namespace std; int x; int a[32]; int main() { cin>>x; if(x == 0) { cout<<0; return 0; } int n=0; while(x!=0) { int yu=x%2; a[n]=yu; n++; x=x/2; } for(int i =n-1; i>=0; i--) { cout<<a[i]; } return 0; }