%{
import java.io.*;
import java.util.*;
import java.text.*;

%}

%token BEGIN N S E W 

%%
grid	:	seq	{System.out.println("Done: " + $1.ival1 + " " + $1.ival2);}


seq	: 	seq instr {$$.ival1 = $1.ival1 + $2.ival1;
			   $$.ival2 = $1.ival2 + $2.ival2;} 
	|	BEGIN	
	;
instr	:	N
	|	S
	|	E
	|	W
	;


%%

  public static final class Semantic {
        public int ival1 ;
        public int ival2 ;

        public Semantic(Semantic sem) {
            ival1 = sem.ival1;
            ival2 = sem.ival2;
        }
        public Semantic(int i1,int i2) { ival1 = i1; ival2 = i2; }
        public Semantic() { ival1=0;ival2=0;}

    }

	/* reference to the lexer object */
	private scanner lexer;
	
	/* interface to the lexer */
	private int yylex() {
		int retVal = -1;
		try {
			retVal = lexer.yylex();
		} catch (IOException e) {
			System.err.println("IO Error:" + e);
		}
		return retVal;
	}
	
	/* error reporting */
	/* constructor taking in File Input */

	public Parser (Reader r) {
		lexer = new scanner (r, this);
	}

	public static void main (String [] args) throws IOException {
		Parser yyparser = new Parser(new InputStreamReader(System.in));
		yyparser.yyparse();
	}

  
     public void yyerror(String error) {
       System.err.println("Error : " + error + " at line " + lexer.getLine() );
     }