def resolve():
    A, B = map(int, input().split())

    if (A >= 13):
        print(B)
        return
    
    if (6 <= A <= 12):
        print(B // 2)
        return

    print(0)


resolve() def resolve():
    A, B = map(int, input().split())

    if (A >= 13):
        print(B)
        return
    
    if (6 <= A <= 12):
        print(B // 2)
        return

    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)
        return
    
     A >= 13 A 13 print(B) print B return if (6 <= A <= 12):
        print(B // 2)
        return

     6 <= A <= 12 6 <= A 6 A 12 print(B // 2) print B // 2 B 2 return print(0) print 0 resolve() resolve def resolve():
    A, B = map(int, input().split())

    if (A >= 13):
        print(B)
        return
    
    if (6 <= A <= 12):
        print(B // 2)
        return

    print(0) def resolve():
    A, B = map(int, input().split())

    if (A >= 13):
        print(B)
        return
    
    if (6 <= A <= 12):
        print(B // 2)
        return

    print(0) resolve
def resolve():
    A, B = map(int, input().split())

    if (A >= 13):
        print(B)
        return
    
    if (6 <= A <= 12):
        print(B // 2)
        return

    print(0)


resolve()