%{
#include <stdio.h>
%}

%token EOL NUMBER

%%

line	:	expr EOL		{ printf("%d\n", $1); }
	;
	
expr	:	expr '+' term		{ $$ = $1 + $3; }
	|	term
	;
	
term	:	term '*' factor		{ $$ = $1 * $3; }
	|	factor
	;

factor	:	'(' expr ')'		{ $$ = $2; }
	|	NUMBER
	;
	
%%

yyerror(char* errmsg)
{
	fprintf(stderr, "%s\n", errmsg);
}

main(int argc, char** argv)
{
	yyparse();
	return 0;
}