using System.Console;
using Nemerle.Collections;

module ArrayCat
{
    Main() : void
    {
        def arr1 = array[1, 2, 3]; def arr2 = array[4, 5, 6];
        def arr12 = arr1.Append(arr2);                       // <----
        foreach (i in arr12) Write($"$i  ");
    }
}