using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static void Main(string[] args)
    {
        long A, B, C, D;
        var line1 = Console.ReadLine().Split(' ');
        var line2 = Console.ReadLine().Split(' ');
        A = long.Parse(line1[0]);
        B = long.Parse(line1[1]);
        C = long.Parse(line2[0]);
        D = long.Parse(line2[1]);
        long N = A * C - B * D;
        long M = A * D + B * C;
        Console.WriteLine("{0} {1}", N, M);
    }
}