func readIntSplit(by separator: String) -> [Int] {
    return readLine()!.split(by: separator).map{Int($0)!}
}

[Int] ab = readIntSplit(" ")
Int (a, b, ans) = ab[0], ab[1], 0
if 5 < a && a <= 12 {
    ans = b/2
} else if 12 < a {
    ans = b
}
print(ans)
