def resolve():
    #n=int(input())
    #a,b=map(int,input().split())
    #x=list(map(int,input().split()))
    #a=[list(map(lambda x:int(x)%2,input().split())) for _ in range(h)]
    a,b=map(int,input().split())
    if a>=13:
        print(b)
    elif a>=6:
        print(b//2)
    else:
        print(0)
    

if __name__ == '__main__':
    resolve() def resolve():
    #n=int(input())
    #a,b=map(int,input().split())
    #x=list(map(int,input().split()))
    #a=[list(map(lambda x:int(x)%2,input().split())) for _ in range(h)]
    a,b=map(int,input().split())
    if a>=13:
        print(b)
    elif a>=6:
        print(b//2)
    else:
        print(0)
     resolve a,b=map(int,input().split()) a map(int,input().split()) map int input().split() ().split () input split b if a>=13:
        print(b)
    elif a>=6:
        print(b//2)
    else:
        print(0)
     a>=13 a 13 print(b) print b elif a>=6:
        print(b//2)
     a>=6 a 6 print(b//2) print b//2 b 2 print(0) print 0 if __name__ == '__main__':
    resolve() __name__ == '__main__' __name__ '__main__' resolve() resolve def resolve():
    #n=int(input())
    #a,b=map(int,input().split())
    #x=list(map(int,input().split()))
    #a=[list(map(lambda x:int(x)%2,input().split())) for _ in range(h)]
    a,b=map(int,input().split())
    if a>=13:
        print(b)
    elif a>=6:
        print(b//2)
    else:
        print(0)
     def resolve():
    #n=int(input())
    #a,b=map(int,input().split())
    #x=list(map(int,input().split()))
    #a=[list(map(lambda x:int(x)%2,input().split())) for _ in range(h)]
    a,b=map(int,input().split())
    if a>=13:
        print(b)
    elif a>=6:
        print(b//2)
    else:
        print(0)
     resolve
def resolve():
    #n=int(input())
    #a,b=map(int,input().split())
    #x=list(map(int,input().split()))
    #a=[list(map(lambda x:int(x)%2,input().split())) for _ in range(h)]
    a,b=map(int,input().split())
    if a>=13:
        print(b)
    elif a>=6:
        print(b//2)
    else:
        print(0)
    

if __name__ == '__main__':
    resolve()
