#include <iostream>

using namespace std;

int main() {
   int i{1};
   int j{0};
   int number;

   
   cout << "Enter a number ";
   cin >> number;

   i = 1 << 20;
   while (i > 0) {
       if ((i & number) == 0) {
          cout << "0";
       } else {
          cout << "1";
       }
       i = i >> 1;
   }
   cout << endl;
/*
   while (j < 20) {
       if ((i & number) == 0) {
          cout << "0";
       } else {
          cout << "1";
       }
       ++j;
       i = i << 1;
   }
   cout << endl;
*/

/*
   while (j < 20) {
      cout << "i = " << i << " j = " << j <<endl;
      ++j;
      i = i << 1;
   }
   cout << "i = " << i << " j = " << j <<endl;
   cout << endl;
*/


   return 0;
}