write a programm that prefrom postfix , prefix increment and decrement on a number

Write a program that preform postfix , prefix increment and decrement on a number 

///////// solutions 

   
#include <iostream>
using namespace std;

int main() {

 int num=10;

  cout<<"After the prefix increment"<<++num<<endl;
  cout<<"Aftr the postfix increment"<<num++<<endl;

  cout<<"After the prefix decrement"<<--num<<endl;
  cout<<"Aftr the postfix decrement"<<num--<<endl;
 
 
}