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) {
  int a, b;
  double res;

  cin >> a >> b;

  res = a * b / 3.305785;
  
  printf("%.6lf\n", res);
  
  return 0;
}

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

using namespace std;

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

C++: 
#include<bits/stdc++.h>

using namespace std;

double a,b;

bool input(){
  if(!(cin>>a>>b))return false;
  return true;
}

double solve(){
  double t = 3.305785;
  return a*b/t;
}

int main(){

  while(input()){
    cout<<solve()<<endl;
  }
}

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


int main()
{
	int a, b;
	cin >> a >> b;
	cout << setprecision(12) << a * b / 3.305785 << endl;
	return 0;
}

C++: #include<iostream>
#include<cctype>
#include<vector>
#include <ctype.h>
#include<algorithm>
#include<queue>
#include<string>
#include <math.h>
#include <iomanip>
using namespace std;
double a, b;
int main() {
	cin >> a >> b;
	cout << fixed<< setprecision(5)<<a*b/3.305785<< endl;
	return 0;
}

C++: #include<iostream>
#include<string>
#include<cstdio>
#include<algorithm>
#include<stack>
#include<queue>
#include<vector>
#include<cmath>
#include<utility>
#include<set>
#include<complex>
#define vi vector<int>
#define vvi vector<vector<int> >
#define ll long long int
#define vl vector<ll>
#define vvl vector<vector<ll>>
#define ld long double
#define INF 1e9
#define EPS 0.0000000001
#define rep(i,n) for(int i=0;i<n;i++)
#define CC puts("-------ok--------");
#define all(in) in.begin(), in.end()
#define bv vector<bool>
using namespace std;
typedef pair<int, int>PA;
using namespace std;
#define MAX 1e7
int main(){
    int n,n2; cin >> n >> n2;
    double ans = n*n2;
    ans/=3.305785;
    printf("%f\n",ans);
    return 0;
}

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

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

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

C++: #include<cstdio>
#include<cmath>
using namespace std;
int main(void)
{	
	double a,b,s;
	scanf("%lf%lf",&a,&b);
	s=a*b/3.305785;
	printf("%lf\n",s);
	return 0;
}

C++: #include <iostream>
#include <vector>
#include <cstdlib>
#include <algorithm>
#include <time.h>
#include <cstdio>
using namespace std;
int main(){
	double a,b;
	cin >> a >> b;
	printf("%.10lf",a*b/3.305785);
	
}

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

int main(){
	double a, b;

	cin >> a >> b;
	printf("%f\n", a * b / 3.305785);
}

C++: #include <vector>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <algorithm>
#include <utility>
#include <functional>
#include <sstream>
#include <iostream>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <climits>
#include <fstream>
using namespace std;
inline int toInt(string s) { int v; istringstream sin(s); sin >> v; return v; }
template<class T> inline string toStr(T x) { ostringstream sout; sout << x; return sout.str(); }
typedef vector<int> vi;
typedef vector<vi>  vvi;
typedef vector<string> vs;
typedef pair<int, int> pii;
typedef long long ll;
#define ALL(a) (a).begin(),(a).end()
#define RALL(a) (a).rbegin(),(a).rend()
#define FOR(i,a,b) for(int i=(a);i<=(b);++i)
#define REP(i,n) FOR(i,0,(n)-1)
const double EPS = 1e-10;
const double PI = acos(-1.0);
const int INF = INT_MAX / 10;

#include <iomanip>

int main() {
	double a, b;
	cin >> a >> b;
	cout << std::setprecision(16) <<  a * b / 3.305785 << endl;
	return 0;
}

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

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

using namespace std;

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

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

using namespace std;

int main()
{
    double a, b;
    const double tubo = 3.305785;

    cout << setprecision(6) << setiosflags(ios::fixed);
    while (cin >> a >> b) {
        cout << a * b / tubo << endl;
    }

    return 0;
}

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

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

	cin >> a >> b;
	ans = (a*b) / 3.305785;

	printf("%.8lf\n", ans);
	return 0;
}

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

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

int main(){

  double a, b;

  cin >> a >> b;

  printf("%lf\n",(a*b)/3.305785);

}

C++: #include<iostream>
#include<iomanip>
#include<algorithm>
#include<cctype>
#include<cmath>
#include<cstdio>
#include<set>
#include<stack>
#include<string>
#include<sstream>
#include<map>
#include<queue>
#include<vector>
using namespace std;

double t = 3.305785;

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

	return 0;
}

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


using namespace std;

int main(void)
{	
	int a, b;
	cin >> a;
	cin >> b;
	double c = (double)a*(double)b / 3.305785;
	printf("%lf", c);
	
}

C++: #include<stdio.h>

int main(){

   int a, b;
   double S;

   scanf("%d %d", &a, &b);
   S=(double)(a:b/3.305785);
   printf("%if, S");

   return 0;
}

C++: #include<stdio.h>
int main(void)
{
	double a,b,s;
	scanf("%lf %lf",&a,&b);
	s=a*b/3.305785;
	printf("%lf\n",s);
	return 0;
}

C++: #include <iostream>
#include <complex>
#include <sstream>
#include <string>
#include <algorithm>
#include <deque>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <vector>
#include <set>
#include <limits>
#include <cstdio>
#include <cctype>
#include <cmath>
#include <cstring>
#include <cstdlib>
#include <ctime>
using namespace std;
#define REP(i, j) for(int i = 0; i < (int)(j); ++i)
#define FOR(i, j, k) for(int i = (int)(j); i < (int)(k); ++i)
#define SORT(v) sort((v).begin(), (v).end())
#define REVERSE(v) reverse((v).begin(), (v).end())
typedef complex<double> P;

int main() {
  int a, b; cin >>a >>b;
  double v = 3.305785;
  printf("%.8lf\n", a * b / v);
  return 0;
}

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

int main()
{
    int a, b;
    double s;

    cin >> a >> b;

    s = ( a * b ) / 3.305785;

    cout << fixed << setprecision(6) << s << endl;

    return 0;
}

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

int main(){
	cin>>a;
	cin>>b;
	double c = a*b;
	cout<<c/3.305785<<endl;
	

	return 0;
	}

C++: #include <iostream>
#include <math.h>
#include <stdio.h>
#include <string>
#include <string.h>
#include <algorithm>
#include <cmath>
#include <limits>
#include <sstream>
#include <iomanip>

using namespace std;

int main (void)
{
	int a,b;

	cin >> a >> b;

	double p = a * b;

	cout << fixed << setprecision(10) << p / 3.305785 << endl;
}

C++: #include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
int main()
{
    int a,b;
    cin>>a>>b;
    double c=a*b;
    c/=3.305785;
    printf("%.20f\n",c);
    return 0;
}