program t( output , input ); begin while not eof do begin while not eoln do begin if input^ in [ '+' , '-' , '*' , '/' , '%' ] then case input ^ of '+': writeln( 'plus' ); '-': writeln( 'minus' ); '*': writeln( 'star' ); '/': writeln( 'slash' ); '%': writeln( 'percent' ); end else writeln( 'random char' ); get(input); end; get(input); end; end.