#include<math.h>
#include<vector>
#include<stdio.h>
using namespace std;
int main()
{
 vector<double> d;
double f;
 while (scanf("%f",&f)!=EOF)
{
 d.push_back(f);
}
vector<double>::iterator p=d.end()-1;
while (p!=d.begin())
{
printf("%11.4f",*p);
}
return 0;
}