import java.util.*;
import java.lang.*;
import java.io.*;

// The main method must be in a class named "Main".
class Main {
    
    public static void main(String[] args) {
  
  
  
     //  INCREMENT OR DECREIMENT
  
  
       int a= 48;
  
       System.out.println(a++);  //out 48
       //iska mtlb pehle a ko same likhega next time +1 kr dega
    
       System.out.println(a);  // out 49
  
       System.out.println(++a); // out 50
  
       // isk mtlb pehle +1 krega fir a print kregia +1+49 =50
  
      /*
       int w = 48
       v = ++w*7
       output is = 343
       ++w =  39
       39*7
    */
  // same for --a
  
  
  
  
  
    }
}