System.out.println ("how maney student you have in your class?");
        int num = Integer.parseInt(br.readLine());
		String  shorts = new String ;
        String  longst = new String ;
        String  name = new String ;
        for (int i =0; i<=num; i++ ){
        	System.out.println("plaes enter the name of your frind");
        	name = br.readLine();
        	if(longst.length<name.length){
        		name =longst ;
        	}
        	if(shorts.length<name.length){
        		name  = shorts ;
        		
        	}
        	
        }
        System.out.println("the short name is"+shorts);
	}
}