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

namespace ConsoleApplication2 {
    class Program {
        static void Main(string[] args) {
            Console.WriteLine("1x1=1");
            Console.WriteLine("1x2=2");
            Console.WriteLine("1x3=3");
            Console.WriteLine("1x4=4");
            Console.WriteLine("1x5=5");
            Console.WriteLine("1x6=6");
            Console.WriteLine("1x7=7");
            Console.WriteLine("1x8=8");
            Console.WriteLine("1x9=9");
            Console.WriteLine("2x1=2");
            Console.WriteLine("2x2=4");
            Console.WriteLine("2x3=6");
            Console.WriteLine("2x4=8");
            Console.WriteLine("2x5=10");
            Console.WriteLine("2x6=12");
            Console.WriteLine("2x7=14");
            Console.WriteLine("2x8=16");
            Console.WriteLine("2x9=18");
            Console.WriteLine("3x1=3");
            Console.WriteLine("3x2=6");
            Console.WriteLine("3x3=9");
            Console.WriteLine("3x4=12");
            Console.WriteLine("3x5=15");
            Console.WriteLine("3x6=18");
            Console.WriteLine("3x7=21");
            Console.WriteLine("3x8=24");
            Console.WriteLine("3x9=27");
            Console.WriteLine("4x1=4");
            Console.WriteLine("4x2=8");
            Console.WriteLine("4x3=12");
            Console.WriteLine("4x4=16");
            Console.WriteLine("4x5=20");
            Console.WriteLine("4x6=24");
            Console.WriteLine("4x7=28");
            Console.WriteLine("4x8=32");
            Console.WriteLine("4x9=36");
            Console.WriteLine("5x1=5");
            Console.WriteLine("5x2=10");
            Console.WriteLine("5x3=15");
            Console.WriteLine("5x4=20");
            Console.WriteLine("5x5=25");
            Console.WriteLine("5x6=30");
            Console.WriteLine("5x7=35");
            Console.WriteLine("5x8=40");
            Console.WriteLine("5x9=45");
            Console.WriteLine("6x1=6");
            Console.WriteLine("6x2=12");
            Console.WriteLine("6x3=18");
            Console.WriteLine("6x4=24");
            Console.WriteLine("6x5=30");
            Console.WriteLine("6x6=36");
            Console.WriteLine("6x7=42");
            Console.WriteLine("6x8=48");
            Console.WriteLine("6x9=54");
            Console.WriteLine("7x1=7");
            Console.WriteLine("7x2=14");
            Console.WriteLine("7x3=21");
            Console.WriteLine("7x4=28");
            Console.WriteLine("7x5=35");
            Console.WriteLine("7x6=42");
            Console.WriteLine("7x7=49");
            Console.WriteLine("7x8=56");
            Console.WriteLine("7x9=63");
            Console.WriteLine("8x1=8");
            Console.WriteLine("8x2=16");
            Console.WriteLine("8x3=24");
            Console.WriteLine("8x4=32");
            Console.WriteLine("8x5=40");
            Console.WriteLine("8x6=48");
            Console.WriteLine("8x7=56");
            Console.WriteLine("8x8=64");
            Console.WriteLine("8x9=72");
            Console.WriteLine("9x1=9");
            Console.WriteLine("9x2=18");
            Console.WriteLine("9x3=27");
            Console.WriteLine("9x4=36");
            Console.WriteLine("9x5=45");
            Console.WriteLine("9x6=54");
            Console.WriteLine("9x7=63");
            Console.WriteLine("9x8=72");
            Console.WriteLine("9x9=81");
        }
    }
}

Measured memory_bytes: 5188