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 C++14 (GCC 5.4.1) (judge verdict: Accepted)

#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <queue>
using namespace std;
typedef long long ll;
typedef pair<int, int> P;
typedef pair<int, P> Q;

ll mod = 1000000007;
int a, b;
ll ans;
vector<P> vec;

int po(int x, int y)
{
	if (y == 0) return 1;
	return po(x, y - 1) * x;
}

int main()
{
	cin >> a >> b;
	if (a >= 13)
	{
		cout << b << endl;
	}
	else if (a >= 6)
	{
		cout << b / 2 << endl;
	}
	else
	{
		cout << 0 << endl;
	}
	cin >> a;
}