using System;
using System.Text.RegularExpressions;

public class Test {
    static bool HasOnlyOne(Match m, int g1, int g2) {
    	if (!m.Success) {
    		return false;
    	}
    	var has1 = m.Groups[g1].Success;
    	var has2 = m.Groups[g2].Success;
    	return !has1 || !has2;
    }
	public static void Main() {
		var r = new Regex(@"^[@][nN]([$]|[~][^~]*[~])?(-)?[1-9][0-9]*(-)?([$]|[~][^~]*[~])?$");
		string s;
		while ((s = Console.ReadLine()) != null) {
			var m = r.Match(s);
			bool good = HasOnlyOne(m, 1, 4) && HasOnlyOne(m, 2, 3);
			if (good) {
				Console.WriteLine("Match: {0}", s);
			} else {
				Console.WriteLine("Fail: {0}", s);
			}
		}
	}

}