using System;

public class Hello
{
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = long.Parse(line[0]);
        var b = long.Parse(line[1]);
        line = Console.ReadLine().Trim().Split(' ');
        var c = long.Parse(line[0]);
        var d = long.Parse(line[1]);
        getAns(a, b, c, d);
    }
    static void getAns(long a, long b, long c, long d)
    {
        var n = a * c - b * d;
        var m = a * d + b * c;
        Console.WriteLine("{0} {1}", n, m);
    }
}