#include<iostream> using namespace std; int main(){ double n,x; cin>>n; int z=int(n); x=n-z; int y[33]={},i=0; if(z==0)cout<<0; while(z!=0){ y[i]=z%2; z/=2; i++; } for(int j=i-1;j>=0;j--)cout<<y[j]; if(x!=0){ cout<<'.'; while(x!=0){ x=x*2; cout<<int(x); x=x-int(x); } } return 0; }