#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ double x; cin>>x; int a[64]={}; int i=0; int n=x; double m=x-n; if(n==0)cout<<'0';; while(n!=0){ a[i]=n%2; n/=2; i++; } for(int j=i-1;j>=0;j--){ cout<<a[j]; } if(m!=0){ cout<<'.'; while(m!=0){ m=m*2; cout<<(int)y; y=y-((int)y; } } cout<<endl; return 0; }