using System;
using System.Linq;
using System.Text.RegularExpressions;
public class Test
{
public static void Main()
{
Console.WriteLine( string.Join("\n",
Regex.Matches("Extract all words but word1 and word2.", @"\b(?!(?:word1|word2)\b)\w+")
.Cast<Match>().Select(x=>x.Value))
);
}
}
dXNpbmcgU3lzdGVtOwp1c2luZyBTeXN0ZW0uTGlucTsKdXNpbmcgU3lzdGVtLlRleHQuUmVndWxhckV4cHJlc3Npb25zOwoKcHVibGljIGNsYXNzIFRlc3QKewoJcHVibGljIHN0YXRpYyB2b2lkIE1haW4oKQoJewoJCUNvbnNvbGUuV3JpdGVMaW5lKCBzdHJpbmcuSm9pbigiXG4iLAoJCQlSZWdleC5NYXRjaGVzKCJFeHRyYWN0IGFsbCB3b3JkcyBidXQgd29yZDEgYW5kIHdvcmQyLiIsIEAiXGIoPyEoPzp3b3JkMXx3b3JkMilcYilcdysiKQoJCQkJLkNhc3Q8TWF0Y2g+KCkuU2VsZWN0KHg9PnguVmFsdWUpKQoJCQkpOwoJfQp9