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 a = NList;
        var b = NList;
        WriteLine($"{a[0] * b[0] - a[1] * b[1]} {a[0] * b[1] + a[1] * b[0]}");
    }
}