#include <iostream>
#include <string>
#include <stdio.h>
#include <stdint.h>
using namespace std;

using uint = unsigned int;

#define CIN( LL , A ) LL A; cin >> A 
#define QUIT return 0 
#define RETURN( ANSWER ) cout << ( ANSWER ) << endl; QUIT 

#include <cassert>

string EnumerateHereditarilyFiniteSets( uint n )
{
  string s{};
  uint i = 0;
  while( n != 0 ){
    if( n % 2 == 1 ){
      s += "," + EnumerateHereditarilyFiniteSets( i );
    }
    n /= 2;
    i++;
  }
  s = "{" + ( s == "" ? s : s.substr( 1 ) ) + "}";
  return s;
}

int main()
{
  CIN( uint , N );
  assert( N <= 1000000 );
  RETURN( EnumerateHereditarilyFiniteSets( N ) );
}