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)
	}

}

Python: a, b = map(int, input().split())
print(a * b / 3.305785)

Python: a,b=map(int,input().split())
s=a*b/3.305785
print(f'{s:.6f}')

Python: a, b = map(float, input().split())
one_pod = 3.305785
pod = a * b / one_pod
print("%.6f"%(pod))

Python: a,b=map(int,input().split())
print(a*b/3.305785)

Python: a,b=map(int,input().split())
print("{0:.6f}".format(a*b/3.305785))

Python: a, b = [int(x) for x in input().split()]

print("{:.6f}".format(a*b / 3.305785))

Python: a,b=map(int,input().split())

S=a*b/3.305785

print(format(S,'.10'))

Python: a,b=map(int,input().split())

S=a*b

print("{0:.10}".format(S/3.305785))

Python: a,b = map(int,input().split())
x = 3.305785

print("{:.6f}".format(a*b/x))

Python: a,b=map(int,input().split())
s=(a*b)/3.305785

print(f'{s:8.6f}')

Python: a, b = map(int, input().split())
print((a*b) / 3.305785)

Python: a,b=map(int,input().split())
print(a*b/3.305785)

Python: a,b = map(int,input().split())
t = a*b / 3.305785
print(t)

Python: 
if __name__ == '__main__':
	
	while True:
		try:
			n,m = map(int,input().split())
			if n == 0 and m == 0:
				break

			ans = n * m / 3.305785
			print('{:.5f}'.format(ans))

		except EOFError:
			break

Python: a,b = map(int,input().split())
s = (a*b)/3.305785
print('{:.6f}'.format(s))

Python: a,b=map(int,input().split())
S=round(a*b/3.305785,6)
print(S)

Python: while True:
  try:
    a,b = map(int,input().split(" "))
  except:break
  print(a*b/3.305785)

Python: a,b=map(float,input().split())
s=a*b/3.305785 
print(s)

Python: while True:
    try:
        a,b = tuple(map(int, input().split()))
    except:
        break

    print(a * b / 3.305785)

Python: a,b = map(int, input().split())
print("{:.6f}".format(a*b/3.305785))

Python: a,b=map(int,input().split())
t=  3.305785
s=(a*b)/t
print(f"{s:.06f}")

Python: a, b=map(int,input().split())
S=a*b/3.305785
print("{0:6f}".format(S))

Python: a, b = map(int, input().split())
print(a * b / 3.305785)

Python: a, b = map(int, input().split())
print(f'{a*b/3.305785:.06f}')

Python: a, b = map(int, input().split())
s=3.305785

print('{:.6f}'.format(a*b/s))

Python: a,b=map(float,input().split())
S=(a*b)/3.305785
print(S)

Python: #!/usr/bin/env python
from __future__ import division, print_function
from sys import stdin, exit


def main(readline=stdin.readline):
    a, b = (float(s) for s in readline().split())
    print('{:.6f}'.format(a * b / 3.305785))
    exit()


main()

Python: a,b=map(int,input().split())
print(a*b/3.305785)

Python: a,b = map(float, input().split())
S = a*b/3.305785
print(S)

Python: a, b = map(int, input().split())
s = a * b
print(s / 3.305785)

Python: a,b=map(int,input().split())
print("{:.6f}".format(a*b/3.305785))

Python: a,b =map(int,input().split())
c=a*b/3.305785

print(f"{c:.6f}")

Python: a,b=input().split()
a=float(a)
b=float(b)
s=(a*b)/3.305785
print(f'{s:.6f}')

Python: a,b = input().split()
a = float(a)
b = float(b)
s = (a*b)/3.305785
print(s)

Python: a,b=map(int,input().split())
c=a*b
d=c/3.305785
print(f'{d:2.06f}')

Python: a,b=map(int,input().split())
f=a*b
c=f/3.305785
print(f"{c:4f}")

Python: a,b=map(float,input().split())
print(a*b/3.305785)

Python: a,b=map(int,input().split())
print('{:.6f}'.format((a*b)/3.305785))

Python: a, b = map(float, input().split())
print(a*b/3.305785)

Python: t = 3.305785
a, b = map(int, input().split())
print("{0:.6f}".format((a*b)/t))

Python: a,b = [float(int(i)) for i in input().split()]
c = a*b/3.305785
print("{:.6f}".format(c))

Python: a, b = map(int, input().split())
print(a * b / 3.305785)

Python: # coding: utf-8
# Your code here!

a,b = map(int,input().split())

S = float(a*b/3.305785)

print(S)

Python: a,b=map(int,input().split())

x=a*b/3.305785
print("{0:8.6f}".format(x))

Python: x,y=map(int,input().split())
print("%f"%(x*y/3.305785))

Python: #coding:utf-8

a, b = map(int, raw_input(). split())
print(a * b / 3.305785)

Python: #!/usr/bin/python3
# coding: utf-8
a,b=map(int,input().split())
print('{:6f}'.format(a*b/3.305785))

Python: a, b = map(int, input().split())
s = a * b
print(s / 3.305785)

Python: a,b=map(int,input().split())
print(a*b/3.305785)

Python: # coding: utf-8
# Your code here!

a,b = map(int,input().split())

S=a*b/3.305785
print("{0:6f}".format(S))

Python: a,b = map(int,input().split())
print("{0:.6f}".format((a*b)/3.305785))

Python: a,b=map(int,input().split())
S=a*b/3.305785
print(f'{S:.06f}')

Python: import math
a,b = map(int,input().split())
c = float(3.305785)
S = a*b/c
print('{:.6f}'.format(S))

Python: a,b=map(int,input().split())
S=a*b/3.305785
print('{:.7f}'.format(S))

Python: a,b=map(int,input().split())
print("{0:.6f}".format(a*b/3.305785))

Python: def tsubo(a,b):
    return (a * b) / 3.305785
tsubo(a,b)

Python: a,b=map(int,input().split())
print(a*b/3.305785)

Python: a, b = map(int, input().split())
print(a*1.0*b/3.305785)

Python: a,b = map(int, input().split())

c = 3.305785

print('{:.6f}'.format(a*b/c))

Python: a,b = map(int,input().split(" "))
print (a*b /3.305785)

Python: a,b=map(int,input().split())
print(f'{a*b/3.305785:.6f}')

Python: a,b =map(float,input().split())
S = a*b/3.305785
print(S)

Python: x=input().split()
y=list(map(int,x))
a=y[0]
b=y[1]
c=(a*b)/3.305785
print("{0:.6f}".format(c))

Python: a,b = [float(i) for i in input().split()]
print(a*b/3.305785)

Python: a,b=map(int,input().split())
print(f"{a*b/3.305785:.6f}")

Python: a,b=map(int,input().split())
S=a*b/3.305785
print(f"{S:.6f}")

Python: a,b=map(int,input().split())
s=a*b/3.305785
print(f"{s:.6f}")

Python: a, b = map(int, input().split())
print(a*b/3.305785)

Python: a,b=map(int,input().split())
S=a*b/3.305785
print(f'{S:.5f}')

Python: a , b = map(int , input() . split())
S = (a * b) / 3.305785
print(format(S))

Python: a,b=map(int,input().split())
s=a*b/3.305785
print(f'{s:6f}')

Python: import math
a,b=map(int,input().split())
S=a*b/3.305785
print(f'{S:.6f}')

Python: a,b=map(int,input().split())
print(f"{(a*b)/3.305785:.6f}")

Python: a , b = map(int, input().split()) 

s = a * b
S = s / 3.305785

print( '{:.5f}'.format(S))

Python: #coding:utf-8

a, b = map(int, raw_input(). split())
print(a * b / 3.305785)

Python: a,b=map(int,input().split())
print(f"{a*b/3.305785:.6f}")

Python: a,b=map(int,input().split())
t=3.305785
S=a*b/t
print("{:.6f}".format(S))

Python: a,b=map(int,input().split())
print(a*b/3.305785)

Python: a, b = map(int, input().split())
print((a*b) / 3.305785)

Python: a,b = map(float,input().split())
print(a*b/3.305785)

Python: a,b = map(int, input().split())
print(f"{a*b/3.305785:.6f}")

Python: a,b=map(int,input().split())

print(a*b/3.305785)

Python: a,b=(int(x) for x in input().split())
print("{:.6f}".format(a*b/3.305785))

Python: a,b=map(float,input().split())
s=a*b
S=s/3.305785
print(f'{S:0.06f}')

Python: a, b = map(int,input().split())

S = a*b/3.305785

print("{:.6f}".format(S))

Python: a,b =input().split()
c=int(a)*int(b)/3.305785
print(f"{c:.6f}")

Python: a, b = map(int, input().split())
print(a * b / 3.305785)

Python: A,B = map(float,input().split())
print(A * B / 3.305785)

Python: a,b = map(int,input().split())
x=a*b
print(format(x/3.305785,'.6f'))

Python: a,b = map(float,input().split())

print("%.6f"%(a*b/3.305785))

Python: a, b = map(int, input().split())
print(a * b / 3.305785)