Go: package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

var sc = bufio.NewScanner(os.Stdin)

//Sliceconvtof ...
func Sliceconvtof() []float64 {
	strs := strings.Split(sc.Text(), " ")

	var flts []float64
	var x int

	for _, s := range strs {
		x, _ = strconv.Atoi(s)
		xf := float64(x)
		flts = append(flts, xf)
	}

	return flts
}

func main() {

	for sc.Scan() {
		i := Sliceconvtof()
		fmt.Printf("%6f", i[0]*i[1]/3.305785)
	}

}

C++: #include	<iostream>
#include	<cstdio>

using namespace std;

int main(void) {
	while(1) {
		int a, b;
		double area, tsubo;
		
		cin >> a;
		if( cin.eof() )		break;
		
		cin >> b;
		area = a * b;
		
		tsubo = area / 3.305785;
		printf("%.6f\n", tsubo);
	}
	
	return 0;
}

C++: #include<cstdio>

int main(){
	double a, b;
	scanf("%lf %lf", &a, &b);
	printf("%lf\n", a*b / 3.305785);
	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;

int main() {
	double a, b;
	cin >> a >> b;
	printf("%.5lf\n", a*b / 3.305785);	
	return 0;
}

C++: #include<iostream>
using namespace std;
int main(){
  double a, b;
  cin >> a >> b;
  double ans = (a * b) / 3.305785;
  cout << fixed << setprecision(6) << ans << "\n";
}

C++: #include <iostream>
#include <algorithm>
#include <map>
#include <vector>
#include <string>
#include <cstdio>
#include <cmath>

using namespace std;

int main(void)
{
    int a,b;
    double s;
    scanf("%d%d",&a, &b);
    s = a / 3.3057850 * b;

    printf("%.6lf\n", s);
    return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
	cout << fixed << setprecision(4);
	double a,b,c;
	cin >> a >> b;
	c=a*b*1.00000;
	c=c/3.305785;
	cout << c << endl;
}

C++: #include <iostream>
#include <iomanip>
using namespace std;
int main(void){
    int a,b;
    double s;
    cin >> a >> b;
    s = (a * b) / 3.305785;
    std::cout << std::fixed << std::setprecision(6) << s << endl;
}

C++: #include<iostream>
using namespace std;
int main() {
	double a = 0;
	double b = 0;
	double c = 0;
	cin >> a >> b;
	c = a * b;
	c = c / 3.305785;
	cout << c << endl;

	return 0;

}

C++: #include<iostream>
#include<cstdio>
#include<algorithm>
using namespace std;

int main(){

  int a,b;
  double S=0;

  scanf("%d %d",&a,&b);
  S=(double)a*b;
  printf("%f\n",S/3.305785);

  return 0;
}

C++: #include <iostream>
using namespace std;
int main(){
int a,b,c;
cin>>a>>b;
c=a*b/3.305785;
cout<<c<<endl;
return 0;
}

C++: #include <cstdio>
#include <iostream>
#include <iomanip>

using namespace std;
int main(void){
    int a,b;
    double X;
    cin >> a >> b;
    X=a*b/ 3.305785;
    cout << fixed << setprecision(8) << X << endl;
    
    
}

C++: #include<iostream>
#include<iomanip>
#include<string>
#include<algorithm>
#include<cmath>
using namespace std;
int main(){
    double a,b;
    cin>>a>>b;
    cout<<setprecision(10)<<a*b/3.305785<<endl;
    return 0;
}

C++: //include
//------------------------------------------
#include <vector>
#include <list>
#include <map>
#include <set>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <queue>
#include <iterator>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>

using namespace std;

//conversion
//------------------------------------------
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

//math
//-------------------------------------------
template<class T> inline T sqr(T x) {return x*x;}

//typedef
//------------------------------------------
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;
typedef unsigned long long ULL;

//container util
//------------------------------------------
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())

//repetition
//------------------------------------------
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)

//constant
//--------------------------------------------
const double EPS = 1e-10;
const double PI  = acos(-1.0);

//clear memory
#define CLR(a) memset((a), 0 ,sizeof(a))

//debug
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;

int gcd(int a, int b){
   int tmp;
   while(a%b!=0){
      tmp=a%b;
      a=b;
      b=tmp;
   }
}

int lcm(int a,int b){
   return a*b/gcd(a,b);
}

bool prime_number(int n){
   if(n==0||n==1) return false;
   vector<bool> a(n+1);
   fill(ALL(a),true);
   FOR(i,2,n/2+1){
      if(!a[i]) continue;
      for(int j=2;i*j<=n;j++){
         a[i*j]=false;
      }
   }
   return a[n];
}

int main(){
   double a,b;
   cin >> a >> b;
   printf("%.6lf\n",a*b/3.305785);
}

C++: #include <iostream>
using namespace std;
int main(){
double a,b,c;
cin>>a>>b;
c=(a*b)/3.305785;
cout<<showpoint<<c<<endl;
return 0;
}

C++: #include <iostream>
#include <iomanip>
#include <vector>
#include <set>
#include <algorithm>
#include <string>
#include <sstream>
 
#define INPUT_FROM_FILE (0) 
#if INPUT_FROM_FILE
#include <fstream>
#endif

int main(int argc, char **argv){
	int a, b;
	bool is_first = true;
	double area_t = 0;

#if INPUT_FROM_FILE
	std::ifstream ifs("test.txt");
	//FILE *fp = fopen("test.txt", "r");
#endif

#if INPUT_FROM_FILE
	ifs >> a >> b;
#else
	std::cin >> a >> b;
#endif

	area_t = a * b / 3.305785;

	printf("%.6lf\n", area_t);
 
#if INPUT_FROM_FILE
	//fclose(fp);
#endif
    return 0;
}

C++: #include<stdio.h>
int main(void)
{
	int a,b;
	float w,x;
	x=3.305785;
	scanf("%d %d",&a,&b);
	w=a*b/x;
	printf("%.6f\n",w);
	return 0;
}

C++: #include <iostream>
#include <cstdio>
using namespace std;

#define TSUBO 3.305785

int main(void) {
	int a, b;
	double S;
	
	cin>> a >> b;
	
	S = a * b;
	
	printf("%.6lf\n", S / TSUBO);
	
	return 0;
}

C++: #include <iostream>
#include <cstdio>
using namespace std;
#define tubo 3.305785

double ans(int a , int b ){
  double res;

  res = (a*b)/tubo;

  return res;
}

int main(void){
  int a,b;

  cin >> a >> b;
  printf("%.6f\n" ,ans(a,b));

  return 0;
}

C++: #include<iostream>
#include<cstdio>
using namespace std;
int main(){

  int a,b;
  double S;

  cin >>a>>b;

  S=(a*b)/3.305785;

  printf("%.6f\n",S);



  return 0;
}

C++: #include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <string>
#include <cstdio>
#include <cmath>
using namespace std;

int main()
{
	int a, b;
	double S;
	cin >> a >> b;
	S = a * b / 3.305785;
	cout << fixed << setprecision(6) << S << endl;
}

C++: #include <iostream>
using namespace std;

int main(){
	double a,b;
	cin >> a >> b;
	printf("%.6f \n",a*b/3.305785);
	return 0;
}

C++: #include <stdio.h>

int main(void)
{
	int a,b;
	double s;
	
	scanf("%d %d", &a, &b);
	
	s = a*b;
	
	s /= 3.305785;
	
	printf("%lf\n", s);
	
	return(0);
}

C++: #include<iostream>
using namespace std;
int main() {
	double a = 0;
	double b = 0;
	double c = 0;
	cin >> a >> b;
	c = a * b;
	c = c / 3.305785;
	printf("%f\n", c);

	return 0;

}

C++: #include<stdio.h>
int main(){
	double a,b;
	scanf("%lf%lf",&a,&b);
	printf("%f\n",a*b/3.305785);
}

C++: #include<iostream>
int main(){
	double a,b;
	std::cin >> a >> b;
	std::cout << ((double)a*b) / 3.305785f << std::endl;
}

C++: #include <iostream>
#include <iomanip>
using namespace std;
int main(){
    double a,b;
    cin>>a>>b;
    a=a*b;
    a=a/3.3057851;
    cout<<fixed<<setprecision(6)<<a<<endl;
}