using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
using System.Runtime.Intrinsics.Arm;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var s = ReadLine().Split();
        var ans = 31;
        if (s[0] == "Sat" || s[0] == "Sun")
        {
            ++ans;
            if (s[1] == "Sat" || s[1] == "Sun") ++ans;
        }
        WriteLine($"8/{ans}");
    }
}