using System;

class CC {
	
	public class IfElseStateMachine {
			
			public enum State {
			START,
			IF_SEEN,
			ELSEIF_SEEN,
			ELSE_SEEN,
			ENDIF_SEEN,
			MAX
			}
		
			public enum Token {
			START,
			IF,
			ELSEIF,
			ELSE,
			ENDIF,
			EOF,
			MAX
			}

			State state;
			public IfElseStateMachine()
			{
			}

			public void HandleToken(Token tok)
			{	
				if(tok == Token.IF) {
					state = (State) tok;
				}
			}
		}
		
		public static int Main () 
		{
			new IfElseStateMachine ().HandleToken (IfElseStateMachine.Token.IF);
			return 0;
		}
}