using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace _10._1
{
    class Program
    {
        static void Main(string[] args)
        {
            string expr = "m (9, p (p (3, 5), m (3, 8)))";
            expr = Regex.Replace(expr, @"\s+", "");
            Regex m = new Regex(@"m\((-?\d+),(-?\d+)\)");
            Regex p = new Regex(@"p\((-?\d+),(-?\d+)\)");
            while (m.IsMatch(expr) || p.IsMatch(expr))
            {
                expr = m.Replace(expr, (Match m1) => ((int.Parse(m1.Groups[1].Value) - int.Parse(m1.Groups[2].Value)) % 10).ToString());
                expr = p.Replace(expr, (Match m1) => ((int.Parse(m1.Groups[1].Value) + int.Parse(m1.Groups[2].Value)) % 10).ToString());
            }
            Console.WriteLine(expr);
        }
    }
}