import java.io.*;
%%
%class expr
%unicode
%line
%column
%eofval{
   return 0;
%eofval}
%{
static final int PLUS=1;
static final int MINUS=2;
static final int TIMES=3;
static final int DIVIDE=4;
static final int LP=5;
static final int RP=6;
static final int EQUAL=7;
static final int INT=8;
static final int EOLN=100;
static int lineno=1;
static int num=0;
%}
%type int
%%
\+	{return(PLUS);}
\-	{return(MINUS);}
\*	{return(TIMES);}
\/	{return(DIVIDE);}
\(	{return(LP);}
\)	{return(RP);}
\=	{return(EQUAL);}
[0-9]*	{num=Integer.parseInt(yytext()); return(INT);}
[\n] 	{lineno++;}
.	{;}