#include <iostream>
using namespace std;
int main()
{
    float a,b,sx;
    int ge,shi,bai;
    cin>>a;
    sx=a-(int)a;
    ge=(int)a%10;
    shi=((int)a%100)/10;
    bai=(int)a/100;
    b=10*sx+0.1*ge+0.01*shi+0.001*bai;
    cout<<b;
    return 0;
}