```cpp #include using namespace std;

int main() { double a; cin>>a; a*=10;

 int n=10;
 int b[n];
for(int i=0;i<4;i++)
{
    
    b[i]=(int)a%10;
    
    a/=10.0;
}
  


double square=0.0;
square=b[0]*100+b[1]*10+b[2]*1+(double)(b[3]*0.1);
cout<<square;

}