#include <iostream> using namespace std; int main(){ double n; cin>>n; int a=n; double b=n-a; int x[64]={},w=0; while(a!=0){ x[w]=a%2; w++; a/=2; } for(int i=w-1;i>=0;i--) cout<<x[i]; if(b!=0) cout<<'.'; while(b!=0){ b*=2; if(b>=1){ cout<<1; b-=1; } else{ cout<<0; } } return 0; }