package Dec2016;  
  
public class Ques1223 {  
  
   public static void main(String[] args){  
       Integer obj = Integer.valueOf(args[args.length - 1]);  
       int i = obj.intValue();  
       if (args.length > 1) {  
           System.out.println(i);  
       }  
       if (args.length > 0) {  
           System.out.println(i - 1);  
       }else {  
           System.out.println(i - 2);  
       }  
   }  
}