# include<iostream> using namespace std; int main(){ double a,y; int x; string b; cin>>a; x=a; y=a-x; if(x==0){ b=b+"0"; } while(x){ char c=x%2+'0'; b=c+b; x/=2; } if(x==0){ b=b+"0"; } if(y!=0){ b=b+"."; while(y!=0){ y*=2; int d=y; if(d>=1){ b=b+"1"; } else b=b+"0"; y-=d; } } if(b=="")cout<<"0"; else cout<<b; return 0; }