using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (n, s) = (c[0], c[1]);
        var min = n + 24;
        var max = n * 29;
        WriteLine(min <= s && s <= max ? "Yes" : "No");
    }
}