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 <iomanip>
#include <iostream>

using namespace std;

int main()
{
  int a, b;

  cin >> a >> b;

  cout << setprecision(15) << a * b / 3.305785 << endl;

  return 0;
}

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

int main(){
	double a,b;
	cin >> a >> b;

	cout << fixed << setprecision(5) << a*b/3.305785 << endl;
	return 0;
}

C++: #include <iostream>
#include <math.h>
#include <iomanip>
using namespace std;
int main(void) 
{
	int a, b;
	double S;
	cin >> a >> b;
	S = a * b / 3.305785;
	cout << fixed << setprecision(6) << S << endl;
	return 0;
}

C++: #include <bits/stdc++.h>
#define rep(i,j,k) for(int i=(int)j;i<(int)k;i++)
#define itrep(i,x) for(auto i=(x).begin(); i!=(x).end();i++)
#define Sort(x) sort((x).begin(),(x).end())
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define vi vector<int>
#define INF (int)1e9
#define INFL 1e18
#define MOD 1000000007
#define pb push_back
#define MP make_pair
#define PI 3.1415926535
typedef long long int ll;
typedef std::pair<int,int> P;
int D=1;
int dx[4]={0,1,0,-1},dy[4]={1,0,-1,0};

using namespace std;

int main(){
    double a,b;
    cin>>a>>b;
    printf("%.10f\n",a*b/3.305785);
    
    return 0;
}

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

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

int main() {
	double a,b;
	cin>>a>>b;
	cout<<fixed<<setprecision(5)<<a*b/3.305785<<endl;
	return 0;
}

C++: #include <iostream>
#include <stdio.h>

using namespace std;

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

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

C++: #include <iostream>
#include <cstdio>
using namespace std;
int main(){
	float a,b,c=3.305785,tubo;
	cin>>a>>b;
	tubo=(a*b)/c;
	printf("%.6lf\n",tubo);
	return 0;
}

C++: #include <iostream>
#include <vector>
#include <list>
#include <algorithm>
#include <string>
#include <sstream>
#include <stack>
#include <iomanip>
#include <numeric>
#include <queue>
#include <climits>
#include <set>
#include <complex>
#include <cmath>
#include <cstring>
#include <map>
using namespace std;
using ll = long long;
#define MOD 1000000007
#define INF 1LL << 59
using ld = long double;

int main()
{
    //std::ios::sync_with_stdio(false);
    //std::cin.tie(0);
    cout << fixed << setprecision(6);

    long double a, b;
    while (cin >> a >> b)
    {
        cout << (long double)a / 3.305785 * b << endl;
    }
    return 0;
}

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

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

C++: #define _USE_MATH_DEFINES
#define _CRT_SECURE_NO_WARNINGS

#include <iostream>
#include <string>
#include <sstream>
#include <iomanip>
#include <cmath>
#include <cstring>
#include <cstdlib>
#include <algorithm>
#include <stack>
#include <queue>
#include <vector>
#include <list>
#include <set>
#include <map>
#include <bitset>
#include <utility>
#include <numeric>
#include <iterator>

using namespace std;

using ll = long long;
using ull = unsigned long long;

const ll inf = 1ll << 60;
const ll mod = (ll)1e9 + 7;

#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()

#define print(s) cout << s;
#define println(s) cout << s << endl;
#define printd(s, f) cout << fixed << setprecision(f) << s << endl;


int main()
{
	double a, b;
	cin >> a >> b;

	printd((a * b) / 3.305785, 6);
}

C++: //-------------
//include
//-------------
#include <map>
#include <list>
#include <cmath>
#include <vector>
#include <string>
#include <cctype>
#include <cstdlib>
#include <iostream>
#include <algorithm>
using namespace std;
//-------------
//typedef
//-------------
typedef  long long LL;
typedef  vector<int> VI;
typedef  vector<double> VD;
typedef  string STR;
typedef  pair<int, int> PII;
typedef  vector<int, int> VII;
typedef  map<string, int> MSI;
//-------------
//utillty
//-------------
#define ALL(a)  (a).begin(),(a).end()
#define MK make_pair
#define PB push_back
#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())
#define COUT(a) cout<<a<<endl
#define POW2(a) pow(a, 2.0)
//-------------
//repetition
//-------------
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)
//-------------
//debug
//-------------
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define dumpl(c) REP(i,SZ(c))cerr<<#c<<i<<"="<<(c[i])<<endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;

const int MOD = 1000000007;
int main()
{
	int a, b;
	long double c = 3.305785;
	cin >> a >> b;
	printf("%lf\n", (a*b)/c);
#ifdef _DEBUG
	while(1);
#endif // _DEBUG

	return 0;
}

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

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

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

int main(void) {
	double a, b;
	double c = 3.305785;

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

	return 0;
}

C++: #include<cstdio>
#include<iostream>
#include<algorithm>
using namespace std;
int main() {
    int a,b;
    while(cin >> a >> b) {
        double ans = a * b / 33057850.0;
        printf("%lf\n", ans * 10000000);
    }
    return 0;
}

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

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

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

int main() {
  int a, b;
  double c;
  cin >> a >> b;
  c = a*b/3.305785;
  printf("%lf", c);
  cout << "hogehogehogebakbakbaka";
  return 0;
}

C++: #include <iostream>
#include <cstdio>
#include <cstdlib>
#include <time.h>
#include <math.h>
#include <vector>
#include <queue>
#include <map>
#include <set>
#include <algorithm>
#include <iterator>
#include <sstream>
#include <string>
#include <bitset>
using namespace std;
#define FOR(I,F,N) for(int I = F; I < (int)(N); I++)
#define T 3.305785
#define rep(i, n) FOR(i, 0, n)
#define FIN(V) cout<<V<<endl
#define pb push_back
#define INF (1 << 30)
typedef pair<int, int> P;
typedef long long ll;
typedef priority_queue<int> pq;
int StrToInt(string);
string IntToStr(int);
int dx[4] = {1, -1, 0, 0};
int dy[4] = {0, 0, 1, -1};

int main(void){
	int a, b;
	cin >> a >> b;
	printf("%6lf\n", a*b/T);

	return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
    int a,b;
    double s=3.305785;
    cin>>a>>b;
    double ans=a*b/s;
    cout<<ans<<endl;
    return 0;
}

C++: #include <iostream>

using namespace std;

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