using System.Linq;

namespace Icod.TestRig {

	public static class Program {

		[System.STAThread]
		public static System.Int32 Main( System.String[] args ) {

			var line = System.Console.In.ReadLine().TrimToNull();
			while ( !System.String.IsNullOrEmpty( line ) ) {
				foreach ( var word in ReadWord( line ) ) {
					System.Console.Out.WriteLine( word );
				}
				line = System.Console.In.ReadLine().TrimToNull();
			}

			System.Console.Error.WriteLine( "(Strike any key to exit.)" );
			System.Console.ReadKey( true );
			return 0;
		}

		public static System.String TrimToNull( this System.String @string ) {
			if ( System.String.IsNullOrEmpty( @string ) ) {
				return null;
			}
			@string = @string.Trim();
			if ( System.String.IsNullOrEmpty( @string ) ) {
				return null;
			}
			return @string;
		}

		public static System.Collections.Generic.IEnumerable<System.String> ReadWord( System.String input ) {
			input ??= System.String.Empty;

			var inlen = input.Length;
			System.Int32 start = 0;
			System.Int32 stop;
			do {
				while (  ( start < inlen ) && System.Char.IsWhiteSpace( input[ start ] ) ) {
					start++;
				}
				stop = start;
				while ( ( stop < inlen ) && !System.Char.IsWhiteSpace( input[ stop ] ) ) {
					stop++;
				}
				if ( start == stop ) {
					yield break;
				} else {
					yield return input.Substring( start, stop - start );
				}
				start = stop;
			} while ( start < inlen );

			yield break;
		}

	}

}