class UseLexer {
  public static void main(String [] args) throws java.io.IOException {
    MyLexer2 lexer=new MyLexer2(System.in);
    Token t;
    while ((t=lexer.yylex())!=null) System.out.println(t.toString());
  }
}

class Token {
  String type;
  String text;
  int line;
  Token(String t, String txt, int l){type=t; text=txt; line=l; }
  public String toString(){ return text+" " +type + " " +line; }
}

%%

%line
%type Token
%class MyLexer2
%eofval{ return null;
%eofval}

IDENTIFIER = [a-zA-Z_][a-zA-Z0-9_]*

%%
"int" { return(new Token("INT", yytext(), yyline));}
{IDENTIFIER} { return(new Token("ID", yytext(), yyline));}
\r|\n {}
. {}