Problem:
Score : 100 points

Problem Statement

Takahashi, who is A years old, is riding a Ferris wheel.

It costs B yen (B is an even number) to ride the Ferris wheel if you are 13 years old or older, but children between 6 and 12 years old (inclusive) can ride it for half the cost, and children who are 5 years old or younger are free of charge. (Yen is the currency of Japan.)

Find the cost of the Ferris wheel for Takahashi.

Constraints

0 ≤ A ≤ 100

2 ≤ B ≤ 1000

B is an even number.

Input

Input is given from Standard Input in the following format:

A B

Output

Print the cost of the Ferris wheel for Takahashi.

Sample Input 1

30 100

Sample Output 1

100

Takahashi is 30 years old now, and the cost of the Ferris wheel is 100 yen.

Sample Input 2

12 100

Sample Output 2

50

Takahashi is 12 years old, and the cost of the Ferris wheel is the half of 100 yen, that is, 50 yen.

Sample Input 3

0 100

Sample Output 3

0

Takahashi is 0 years old, and he can ride the Ferris wheel for free.

Solution in Fortran (gfortran v4.8.4) (judge verdict: Runtime Error)

implicit none

integer A,B,money,n

write(6,*) 'A B'
do n=1,10
	read *,A,B
	if(A.gt.0 .and. A.lt.100 .and. B.gt.2 .and. B.lt.1000 .and.mod(B,2)==0) exit
end do

if(A.ge.13)					money=B
if(A.ge.6 .and. A.le.12) 	money=B*0.5
if(A.le.5)					money=0
write(6,'(i4)') money


end