package main

import . "fmt"
import . "strings"

var s [1e6+1]string

func init() {
	s[0] ="{}"
}

func f(n int) string {
	if len(s[n])>0 {
		return s[n]
	}
	t:=[]string{}
	for i:=0;i<63;i++ {
		if (n&(1<<i))!=0 {
			t=append(t,f(i))
		}
	}
	s[n]="{"+Join(t,",")+"}"
	return s[n]
}

func main() {
	var n int
	Scan(&n)
	Println(f(n))
}