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)

    #define _GLIBCXX_DEBUG
    #include <bits/stdc++.h>
    using namespace std;
    typedef long long ll;
    typedef pair<int, int> pii;
    typedef map<int, int> mii;
    typedef map<char,int> mci;
    typedef vector<int> vi;
    typedef vector<vi> vvi;
    typedef vector<ll> vll;
    typedef vector<pair<int,int>> vii;
    typedef vector<char> vc;
    typedef vector<vc> vcc;
    #define all(x) (x).begin(), (x).end()
    #define rall(x) (x).rbegin(), (x).rend()
    #define pb push_back
    #define mp make_pair
    #define F first
    #define S second
    #define in insert
    #define sz(v) v.size()
    #define mina(a,b) (a)=min((a),(b));
    #define maxa(a,b) (a)=max((a),(b));
    const int INF = 1e9 + 5;
    
    void solve(){
        int a,b,ans; cin>>a>>b;
        if(a>=13) ans=b;
        else if(a>=6) ans=b/2;
        else ans=0;
        cout<<ans;
    }
    int main(){
        int T=1;
        //cin>>T;
        for(int i = 0; i < T; i++) solve(); 
    }