options {
    STATIC = false;
}

PARSER_BEGIN(Adder)
import java.io.*;

class Adder {
    static public void main(String[] args) {
        for (String arg: args) {
            try {
            System.out.println(evaluate(arg));
            }
            catch (ParseException ex) {
                System.err.println(ex.getMessage());
            }
        }
    }
    static public long evaluate(String src) throws ParseException {
         Reader reader = new StringReader(src);
         return new Adder(reader).expr();
    }
}
PARSER_END(Adder)

SKIP: { <[" ","\t","\r","\n"]> }

TOKEN: {
    <INTEGER: (["0"-"9"])+>
}

long expr():
{
    Token x, y;
}
{
    x=<INTEGER> "+" y=<INTEGER> <EOF>
        {
            return Long.parseLong(x.image) + Long.parseLong(y.image);
        }
}