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;
#define int long long
signed main(){
        double a,b;
        while( scanf("%lf %lf", &a, &b) != EOF ){
                printf("%lf\n", a*b/3.305785);
        }
        return 0;
}

C++: #include<iostream>
#include<cstdio>
#include<iomanip>
using namespace std;
int main(void)
{
  int a,b;
  cin>>a>>b;
  double s=a*b/3.305785;
  cout<<setprecision(9)<<s<<endl;
  return 0;
}

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

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

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

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

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

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

double a, b;

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

C++: #include <cstdio>

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

C++: #include <iostream>

using namespace std;

int main()
{
  int a, b;

  cin >> a >> b;

  cout << 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 TUBO 3.305785
#define EPS 1e-10
using namespace std;

double calc(int a, int b) {
    return(a * b / (double)TUBO);
}

int main(void) {
    int a, b;
    cin >> a >> b;
    printf("%.6f\n", calc(a, b));
    
    return(0);
}

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

C++: #include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <climits>
#include <cfloat>
#include <ctime>
#include <cassert>
#include <map>
#include <utility>
#include <set>
#include <iostream>
#include <memory>
#include <string>
#include <vector>
#include <algorithm>
#include <functional>
#include <sstream>
#include <complex>
#include <stack>
#include <queue>
#include <numeric>
#include <list>
#include <iomanip>
#include <fstream>
#include <bitset>
   
using namespace std;
   
 
#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
#define foreach(it, c) for (__typeof__((c).begin()) it=(c).begin(); it != (c).end(); ++it)
#define rforeach(it, c) for (__typeof__((c).rbegin()) it=(c).rbegin(); it != (c).rend(); ++it)
#define all(c) (c).begin(), (c).end()
#define rall(c) (c).rbegin(), (c).rend()
#define CL(arr, val) memset(arr, val, sizeof(arr))
#define COPY(dest, src) memcpy(dest, src, sizeof(dest))
#define ten(n) ((long long)(1e##n))
#define bin(n) (1LL << (n))
#define erep(i, n) for (int i = 0; i <= (int)(n); ++i)
#define revrep(i, n) for (int i = (n); i >= 0; --i)
#define pb push_back

template <class T> void chmax(T& a, const T& b) { a = max(a, b); }
template <class T> void chmin(T& a, const T& b) { a = min(a, b); }

template <class T> void uniq(T& c) { sort(c.begin(), c.end()); c.erase(unique(c.begin(), c.end()), c.end()); }
 
template <class T> string to_s(const T& a) { ostringstream os; os << a; return os.str(); }
template <class T> T to_T(const string& s) { istringstream is(s); T res; is >> res; return res; }

template <typename T> void print_container(ostream& os, const T& c) { const char* _s = " "; if (!c.empty()) { __typeof__(c.begin()) last = --c.end(); foreach (it, c) { os << *it; if (it != last) cout << _s; } } }
template <typename T> ostream& operator<<(ostream& os, const vector<T>& c) { print_container(os, c); return os; }
template <typename T> ostream& operator<<(ostream& os, const set<T>& c) { print_container(os, c); return os; }
template <typename T> ostream& operator<<(ostream& os, const multiset<T>& c) { print_container(os, c); return os; }
template <typename T> ostream& operator<<(ostream& os, const deque<T>& c) { print_container(os, c); return os; }
template <typename T, typename U> ostream& operator<<(ostream& os, const map<T, U>& c) { print_container(os, c); return os; }
template <typename T, typename U> ostream& operator<<(ostream& os, const pair<T, U>& p) { os << "( " << p.first << ", " << p.second << " )"; return os; }

template <class T> void print(T a, int n, const string& deli = " ", int br = 1) { for (int i = 0; i < n; ++i) { cout << a[i]; if (i + 1 != n) cout << deli; } while (br--) cout << endl; }
template <class T> void print2d(T a, int w, int h, int width = -1, int br = 1) { for (int i = 0; i < h; ++i) { for (int j = 0; j < w; ++j) {    if (width != -1) cout.width(width); cout << a[i][j] << ' '; } cout << endl; } while (br--) cout << endl; }

template <class T> void input(T& a, int n) { for (int i = 0; i < n; ++i) cin >> a[i]; }
template <class T> void input(T* a, int n) { for (int i = 0; i < n; ++i) cin >> a[i]; }

void fix_pre(int n) { cout.setf(ios::fixed, ios::floatfield); cout.precision(10); }
void fast_io() { cin.tie(0); ios::sync_with_stdio(false); }
#define trace(x) (cout << #x << ": " << (x) << endl)
 
bool in_rect(int x, int y, int w, int h) { return 0 <= x && x < w && 0 <= y && y < h; }

typedef long long ll;
typedef pair<int, int> pint;

// y(v): v>^<  y(^): ^>v<
const int dx[] = { 0, 1, 0, -1 };
const int dy[] = { 1, 0, -1, 0 };

const double PI = acos(-1.0);
#define mp make_pair



int main()
{
    int a, b;
    cin >> a >> b;
    printf("%.8f\n", a * b / 3.305785);
}

C++: #include <iostream>
#include<stdio.h>
using namespace std;
int main(void){
    int a,b;
    cin>>a>>b;
    printf("%.6f",a*b/3.305785);
    cout<<endl;
}

C++: #include <iostream>
#include <math.h>
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<iostream>
#include<cstdio>

using namespace std;

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

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

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

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

using namespace std;

int main(void){

	double a,b;

	cin>>a>>b;
	cout<<fixed<<setprecision(6)<<a*b/3.305785 <<endl;
	cin>>a;
	return 0;
}

C++: #include <iostream>
#include <stdio.h>
using namespace std;
int main(){
	int a,b;
	cin>>a>>b;
	printf("%.6f\n",a*b/3.305785);
	
	return 0;
}

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

int main(){
  double a,b;
  cin>>a>>b;
  printf("%.9f\n",a*b/tubo);
  return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
int main(){
	double a,b;
	cin>>a>>b;
	printf("%.10f\n",a*b/3.305785);
}

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