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

namespace Yukicoder
{
	public static class Program
	{
		public static void Main (string[] args)
		{
			string line = Console.ReadLine ();
			string key = "ｗ";
			if (line.IndexOf (key) < 0) {
				Console.WriteLine ();
				return;
			}	
			if (Enumerable.Repeat (key[0], line.Length).SequenceEqual (line)) {
				Console.WriteLine ();
				return;
			}
			for (int i = line.Length - 1; i >= 1; i--) {
				var matchKey = new String (Enumerable.Repeat (key, i).SelectMany (_ => _).ToArray ());
				List<string> tokens = new List<string> ();
				int first = 0;
				while (first < line.Length) {
					int index = line.IndexOf (matchKey, first);
					if (index < 0) {
						break;
					}
					var sub = line.Substring(first, index - first);
					if (sub.Length != 0) {
						int lastIndex = sub.LastIndexOf(key);
						if (lastIndex >= 0) {
							tokens.Add (sub.Substring (lastIndex + 1, sub.Length - (lastIndex + 1)));
						} else {
							tokens.Add (sub);
						}
					}
					first = index + matchKey.Length;
				}
				if (tokens.Any ()) {
					foreach (var element in tokens) {
						Console.WriteLine (element);
					}
					return;
				}
			}
		}
	}
}